./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal20.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB --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 64bit --witnessprinter.graph.data.programhash 4dc4211f2b8131a829ff8e1fa12908da9356d5cadf0e7b793aab2903e0fde547 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:32:57,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:32:57,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 20:32:57,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:32:57,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:32:57,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:32:57,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:32:57,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:32:57,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:32:57,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:32:57,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:32:57,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:32:57,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:32:57,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:32:57,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:32:57,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:32:57,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:32:57,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:32:57,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:32:57,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:32:57,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:32:57,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:32:57,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:32:57,382 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:32:57,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:32:57,383 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:32:57,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:57,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:57,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:57,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:57,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:32:57,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:57,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:57,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:57,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:57,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:32:57,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:32:57,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:32:57,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:32:57,387 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc4211f2b8131a829ff8e1fa12908da9356d5cadf0e7b793aab2903e0fde547 [2024-11-27 20:32:57,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:32:57,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:32:57,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:32:57,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:32:57,792 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:32:57,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal20.c [2024-11-27 20:33:01,377 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/data/3b3f5679a/d2095dd988604fc39e0e0864ae52472b/FLAG815f34ba7 [2024-11-27 20:33:01,842 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:33:01,842 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal20.c [2024-11-27 20:33:01,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/data/3b3f5679a/d2095dd988604fc39e0e0864ae52472b/FLAG815f34ba7 [2024-11-27 20:33:01,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/data/3b3f5679a/d2095dd988604fc39e0e0864ae52472b [2024-11-27 20:33:01,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:33:01,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:33:01,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:01,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:33:02,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:33:02,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:01" (1/1) ... [2024-11-27 20:33:02,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ffe91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:02, skipping insertion in model container [2024-11-27 20:33:02,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:01" (1/1) ... [2024-11-27 20:33:02,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:33:02,325 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_98ef9500-5792-4fe2-a018-8340db60c738/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal20.c[1245,1258] [2024-11-27 20:33:02,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:02,954 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:33:02,968 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_98ef9500-5792-4fe2-a018-8340db60c738/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal20.c[1245,1258] [2024-11-27 20:33:03,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:03,361 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:33:03,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03 WrapperNode [2024-11-27 20:33:03,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:03,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:03,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:33:03,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:33:03,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,274 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3556 [2024-11-27 20:33:04,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:04,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:33:04,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:33:04,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:33:04,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,564 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-27 20:33:04,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:04,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:33:04,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:33:04,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:33:04,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:33:05,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:05,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:05,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:05,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:33:05,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ef9500-5792-4fe2-a018-8340db60c738/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:33:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:33:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:33:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:33:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:33:05,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:33:05,575 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:33:05,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:33:12,510 INFO L? ?]: Removed 1995 outVars from TransFormulas that were not future-live. [2024-11-27 20:33:12,510 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:33:12,549 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:33:12,549 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:33:12,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:12 BoogieIcfgContainer [2024-11-27 20:33:12,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:33:12,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:33:12,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:33:12,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:33:12,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:33:01" (1/3) ... [2024-11-27 20:33:12,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730ef847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:12, skipping insertion in model container [2024-11-27 20:33:12,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (2/3) ... [2024-11-27 20:33:12,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730ef847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:12, skipping insertion in model container [2024-11-27 20:33:12,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:12" (3/3) ... [2024-11-27 20:33:12,564 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal20.c [2024-11-27 20:33:12,591 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:33:12,595 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal20.c that has 1 procedures, 1061 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:33:12,737 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:33:12,753 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;@64f9ad31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:33:12,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:33:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 1061 states, 1059 states have (on average 1.5004721435316337) internal successors, (1589), 1060 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-27 20:33:12,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:12,796 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:12,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:12,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 816103307, now seen corresponding path program 1 times [2024-11-27 20:33:12,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:12,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838269004] [2024-11-27 20:33:12,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:12,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:17,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838269004] [2024-11-27 20:33:17,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838269004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:17,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:17,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:33:17,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386793317] [2024-11-27 20:33:17,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:17,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:33:17,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:17,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:33:17,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:17,457 INFO L87 Difference]: Start difference. First operand has 1061 states, 1059 states have (on average 1.5004721435316337) internal successors, (1589), 1060 states have internal predecessors, (1589), 0 states have call successors, (0), 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 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:17,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:17,702 INFO L93 Difference]: Finished difference Result 2091 states and 3135 transitions. [2024-11-27 20:33:17,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:33:17,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 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 333 [2024-11-27 20:33:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:17,743 INFO L225 Difference]: With dead ends: 2091 [2024-11-27 20:33:17,744 INFO L226 Difference]: Without dead ends: 1060 [2024-11-27 20:33:17,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:17,762 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 0 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4743 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:17,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4743 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2024-11-27 20:33:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1060. [2024-11-27 20:33:17,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 1059 states have (on average 1.498583569405099) internal successors, (1587), 1059 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1587 transitions. [2024-11-27 20:33:17,902 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1587 transitions. Word has length 333 [2024-11-27 20:33:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:17,907 INFO L471 AbstractCegarLoop]: Abstraction has 1060 states and 1587 transitions. [2024-11-27 20:33:17,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1587 transitions. [2024-11-27 20:33:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-27 20:33:17,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:17,927 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:17,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:33:17,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:17,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -468903959, now seen corresponding path program 1 times [2024-11-27 20:33:17,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:17,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854145106] [2024-11-27 20:33:17,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:19,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:19,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854145106] [2024-11-27 20:33:19,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854145106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:19,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:19,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:33:19,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688591968] [2024-11-27 20:33:19,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:19,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:33:19,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:19,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:33:19,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:19,875 INFO L87 Difference]: Start difference. First operand 1060 states and 1587 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:20,009 INFO L93 Difference]: Finished difference Result 2092 states and 3133 transitions. [2024-11-27 20:33:20,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:33:20,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2024-11-27 20:33:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:20,023 INFO L225 Difference]: With dead ends: 2092 [2024-11-27 20:33:20,023 INFO L226 Difference]: Without dead ends: 1062 [2024-11-27 20:33:20,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:20,029 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 0 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:20,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4739 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-27 20:33:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2024-11-27 20:33:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1061 states have (on average 1.4976437323279925) internal successors, (1589), 1061 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1589 transitions. [2024-11-27 20:33:20,095 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1589 transitions. Word has length 334 [2024-11-27 20:33:20,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:20,099 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1589 transitions. [2024-11-27 20:33:20,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1589 transitions. [2024-11-27 20:33:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-27 20:33:20,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:20,108 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:20,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:33:20,109 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:20,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1545882660, now seen corresponding path program 1 times [2024-11-27 20:33:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:20,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678759404] [2024-11-27 20:33:20,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:28,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:28,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:28,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678759404] [2024-11-27 20:33:28,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678759404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:28,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:28,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:33:28,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442056718] [2024-11-27 20:33:28,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:28,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:33:28,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:28,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:33:28,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:33:28,132 INFO L87 Difference]: Start difference. First operand 1062 states and 1589 transitions. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:28,580 INFO L93 Difference]: Finished difference Result 2734 states and 4091 transitions. [2024-11-27 20:33:28,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:33:28,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 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 335 [2024-11-27 20:33:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:28,594 INFO L225 Difference]: With dead ends: 2734 [2024-11-27 20:33:28,594 INFO L226 Difference]: Without dead ends: 1702 [2024-11-27 20:33:28,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:33:28,599 INFO L435 NwaCegarLoop]: 1563 mSDtfsCounter, 4049 mSDsluCounter, 4691 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:28,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 6254 Invalid, 86 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:33:28,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-27 20:33:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1683. [2024-11-27 20:33:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.4988109393579072) internal successors, (2521), 1682 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:28,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2521 transitions. [2024-11-27 20:33:28,689 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2521 transitions. Word has length 335 [2024-11-27 20:33:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:28,690 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2521 transitions. [2024-11-27 20:33:28,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2521 transitions. [2024-11-27 20:33:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-27 20:33:28,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:28,701 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:33:28,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:28,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1586611152, now seen corresponding path program 1 times [2024-11-27 20:33:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169395460] [2024-11-27 20:33:28,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:40,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:40,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169395460] [2024-11-27 20:33:40,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169395460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:40,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:40,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:33:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830734132] [2024-11-27 20:33:40,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:40,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:33:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:40,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:33:40,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:33:40,186 INFO L87 Difference]: Start difference. First operand 1683 states and 2521 transitions. Second operand has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:41,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:41,551 INFO L93 Difference]: Finished difference Result 4933 states and 7392 transitions. [2024-11-27 20:33:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:33:41,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 0 states have call successors, (0), 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 336 [2024-11-27 20:33:41,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:41,561 INFO L225 Difference]: With dead ends: 4933 [2024-11-27 20:33:41,562 INFO L226 Difference]: Without dead ends: 1893 [2024-11-27 20:33:41,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:33:41,567 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 4236 mSDsluCounter, 6893 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4236 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:41,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4236 Valid, 8565 Invalid, 522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:33:41,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2024-11-27 20:33:41,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1861. [2024-11-27 20:33:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1860 states have (on average 1.499462365591398) internal successors, (2789), 1860 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2789 transitions. [2024-11-27 20:33:41,639 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2789 transitions. Word has length 336 [2024-11-27 20:33:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:41,639 INFO L471 AbstractCegarLoop]: Abstraction has 1861 states and 2789 transitions. [2024-11-27 20:33:41,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2789 transitions. [2024-11-27 20:33:41,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-27 20:33:41,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:41,648 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:41,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:33:41,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:41,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash 941593035, now seen corresponding path program 1 times [2024-11-27 20:33:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:41,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853316114] [2024-11-27 20:33:41,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:48,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:48,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853316114] [2024-11-27 20:33:48,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853316114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:48,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:48,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:33:48,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674205832] [2024-11-27 20:33:48,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:48,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:33:48,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:48,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:33:48,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:33:48,571 INFO L87 Difference]: Start difference. First operand 1861 states and 2789 transitions. Second operand has 12 states, 12 states have (on average 28.083333333333332) internal successors, (337), 12 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:53,126 INFO L93 Difference]: Finished difference Result 5246 states and 7864 transitions. [2024-11-27 20:33:53,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:33:53,127 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 28.083333333333332) internal successors, (337), 12 states have internal predecessors, (337), 0 states have call successors, (0), 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 337 [2024-11-27 20:33:53,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:53,143 INFO L225 Difference]: With dead ends: 5246 [2024-11-27 20:33:53,143 INFO L226 Difference]: Without dead ends: 3622 [2024-11-27 20:33:53,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:33:53,150 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 3108 mSDsluCounter, 9705 mSDsCounter, 0 mSdLazyCounter, 3723 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 11124 SdHoareTripleChecker+Invalid, 3728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:53,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 11124 Invalid, 3728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 3723 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 20:33:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-11-27 20:33:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3139. [2024-11-27 20:33:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 1.5) internal successors, (4707), 3138 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 4707 transitions. [2024-11-27 20:33:53,272 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 4707 transitions. Word has length 337 [2024-11-27 20:33:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:53,273 INFO L471 AbstractCegarLoop]: Abstraction has 3139 states and 4707 transitions. [2024-11-27 20:33:53,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 28.083333333333332) internal successors, (337), 12 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 4707 transitions. [2024-11-27 20:33:53,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-27 20:33:53,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:53,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:53,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:33:53,282 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:53,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:53,283 INFO L85 PathProgramCache]: Analyzing trace with hash -494346716, now seen corresponding path program 1 times [2024-11-27 20:33:53,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:53,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925230082] [2024-11-27 20:33:53,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:53,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:56,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:56,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925230082] [2024-11-27 20:33:56,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925230082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:56,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:56,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:33:56,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088726608] [2024-11-27 20:33:56,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:56,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:33:56,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:56,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:33:56,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:33:56,894 INFO L87 Difference]: Start difference. First operand 3139 states and 4707 transitions. Second operand has 9 states, 9 states have (on average 37.44444444444444) internal successors, (337), 9 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:58,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:58,142 INFO L93 Difference]: Finished difference Result 5944 states and 8908 transitions. [2024-11-27 20:33:58,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:33:58,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 37.44444444444444) internal successors, (337), 9 states have internal predecessors, (337), 0 states have call successors, (0), 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 337 [2024-11-27 20:33:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:58,158 INFO L225 Difference]: With dead ends: 5944 [2024-11-27 20:33:58,158 INFO L226 Difference]: Without dead ends: 3207 [2024-11-27 20:33:58,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:33:58,165 INFO L435 NwaCegarLoop]: 1569 mSDtfsCounter, 1769 mSDsluCounter, 8721 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 10290 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:58,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 10290 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:33:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2024-11-27 20:33:58,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3175. [2024-11-27 20:33:58,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 3174 states have (on average 1.4993698802772526) internal successors, (4759), 3174 states have internal predecessors, (4759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4759 transitions. [2024-11-27 20:33:58,295 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4759 transitions. Word has length 337 [2024-11-27 20:33:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:58,296 INFO L471 AbstractCegarLoop]: Abstraction has 3175 states and 4759 transitions. [2024-11-27 20:33:58,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 37.44444444444444) internal successors, (337), 9 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4759 transitions. [2024-11-27 20:33:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-27 20:33:58,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:58,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:58,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:33:58,308 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:58,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 429518870, now seen corresponding path program 1 times [2024-11-27 20:33:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:58,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750014599] [2024-11-27 20:33:58,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:01,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:01,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750014599] [2024-11-27 20:34:01,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750014599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:01,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:01,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:34:01,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051706790] [2024-11-27 20:34:01,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:01,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:34:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:02,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:34:02,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:02,001 INFO L87 Difference]: Start difference. First operand 3175 states and 4759 transitions. Second operand has 8 states, 8 states have (on average 42.125) internal successors, (337), 8 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:02,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:02,435 INFO L93 Difference]: Finished difference Result 4974 states and 7450 transitions. [2024-11-27 20:34:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:34:02,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 42.125) internal successors, (337), 8 states have internal predecessors, (337), 0 states have call successors, (0), 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 337 [2024-11-27 20:34:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:02,444 INFO L225 Difference]: With dead ends: 4974 [2024-11-27 20:34:02,445 INFO L226 Difference]: Without dead ends: 3196 [2024-11-27 20:34:02,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:34:02,448 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 4051 mSDsluCounter, 7806 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 9368 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:02,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4051 Valid, 9368 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:34:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2024-11-27 20:34:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3178. [2024-11-27 20:34:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3178 states, 3177 states have (on average 1.4992130941139439) internal successors, (4763), 3177 states have internal predecessors, (4763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 4763 transitions. [2024-11-27 20:34:02,525 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 4763 transitions. Word has length 337 [2024-11-27 20:34:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:02,526 INFO L471 AbstractCegarLoop]: Abstraction has 3178 states and 4763 transitions. [2024-11-27 20:34:02,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 42.125) internal successors, (337), 8 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:02,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 4763 transitions. [2024-11-27 20:34:02,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-27 20:34:02,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:02,536 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:02,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:34:02,536 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:02,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash 749531515, now seen corresponding path program 1 times [2024-11-27 20:34:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:02,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201293904] [2024-11-27 20:34:02,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:02,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:06,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:06,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201293904] [2024-11-27 20:34:06,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201293904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:06,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:06,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:34:06,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71335130] [2024-11-27 20:34:06,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:06,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:06,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:06,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:06,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:06,048 INFO L87 Difference]: Start difference. First operand 3178 states and 4763 transitions. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:06,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:06,641 INFO L93 Difference]: Finished difference Result 6644 states and 9953 transitions. [2024-11-27 20:34:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:34:06,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 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 338 [2024-11-27 20:34:06,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:06,653 INFO L225 Difference]: With dead ends: 6644 [2024-11-27 20:34:06,653 INFO L226 Difference]: Without dead ends: 3178 [2024-11-27 20:34:06,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:06,657 INFO L435 NwaCegarLoop]: 2177 mSDtfsCounter, 1740 mSDsluCounter, 4753 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 6930 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:06,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 6930 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:34:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2024-11-27 20:34:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 3178. [2024-11-27 20:34:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3178 states, 3177 states have (on average 1.4979540446962543) internal successors, (4759), 3177 states have internal predecessors, (4759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 4759 transitions. [2024-11-27 20:34:06,728 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 4759 transitions. Word has length 338 [2024-11-27 20:34:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:06,729 INFO L471 AbstractCegarLoop]: Abstraction has 3178 states and 4759 transitions. [2024-11-27 20:34:06,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 4759 transitions. [2024-11-27 20:34:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-27 20:34:06,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:06,734 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:06,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:34:06,735 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:06,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:06,735 INFO L85 PathProgramCache]: Analyzing trace with hash 291563659, now seen corresponding path program 1 times [2024-11-27 20:34:06,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:06,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962183653] [2024-11-27 20:34:06,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:06,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:10,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:10,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962183653] [2024-11-27 20:34:10,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962183653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:10,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:10,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:34:10,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809635236] [2024-11-27 20:34:10,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:10,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:34:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:10,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:34:10,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:10,144 INFO L87 Difference]: Start difference. First operand 3178 states and 4759 transitions. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:11,133 INFO L93 Difference]: Finished difference Result 7486 states and 11213 transitions. [2024-11-27 20:34:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:34:11,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 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 339 [2024-11-27 20:34:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:11,148 INFO L225 Difference]: With dead ends: 7486 [2024-11-27 20:34:11,148 INFO L226 Difference]: Without dead ends: 5430 [2024-11-27 20:34:11,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:11,152 INFO L435 NwaCegarLoop]: 1405 mSDtfsCounter, 2591 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 7011 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:11,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 7011 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:34:11,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5430 states. [2024-11-27 20:34:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5430 to 5326. [2024-11-27 20:34:11,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 1.4987793427230047) internal successors, (7981), 5325 states have internal predecessors, (7981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 7981 transitions. [2024-11-27 20:34:11,265 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 7981 transitions. Word has length 339 [2024-11-27 20:34:11,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:11,267 INFO L471 AbstractCegarLoop]: Abstraction has 5326 states and 7981 transitions. [2024-11-27 20:34:11,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 7981 transitions. [2024-11-27 20:34:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-27 20:34:11,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:11,274 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:11,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:34:11,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:11,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:11,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1063288424, now seen corresponding path program 1 times [2024-11-27 20:34:11,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:11,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015985739] [2024-11-27 20:34:11,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:11,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:15,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:15,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015985739] [2024-11-27 20:34:15,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015985739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:15,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:15,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:34:15,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916178305] [2024-11-27 20:34:15,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:15,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:34:15,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:15,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:34:15,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:15,652 INFO L87 Difference]: Start difference. First operand 5326 states and 7981 transitions. Second operand has 9 states, 9 states have (on average 37.77777777777778) internal successors, (340), 9 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:16,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:16,070 INFO L93 Difference]: Finished difference Result 8196 states and 12276 transitions. [2024-11-27 20:34:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:16,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 37.77777777777778) internal successors, (340), 9 states have internal predecessors, (340), 0 states have call successors, (0), 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 340 [2024-11-27 20:34:16,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:16,087 INFO L225 Difference]: With dead ends: 8196 [2024-11-27 20:34:16,087 INFO L226 Difference]: Without dead ends: 5344 [2024-11-27 20:34:16,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:34:16,091 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 4040 mSDsluCounter, 7777 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4040 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:16,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4040 Valid, 9332 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:34:16,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-27 20:34:16,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5330. [2024-11-27 20:34:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 1.4985926064927755) internal successors, (7986), 5329 states have internal predecessors, (7986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 7986 transitions. [2024-11-27 20:34:16,182 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 7986 transitions. Word has length 340 [2024-11-27 20:34:16,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:16,183 INFO L471 AbstractCegarLoop]: Abstraction has 5330 states and 7986 transitions. [2024-11-27 20:34:16,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 37.77777777777778) internal successors, (340), 9 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 7986 transitions. [2024-11-27 20:34:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-27 20:34:16,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:16,190 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:16,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:34:16,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:16,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:16,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1332622824, now seen corresponding path program 1 times [2024-11-27 20:34:16,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:16,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746274799] [2024-11-27 20:34:16,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:16,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:19,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746274799] [2024-11-27 20:34:19,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746274799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:19,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:19,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:34:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451334523] [2024-11-27 20:34:19,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:19,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:34:19,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:19,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:34:19,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:19,966 INFO L87 Difference]: Start difference. First operand 5330 states and 7986 transitions. Second operand has 7 states, 7 states have (on average 48.714285714285715) internal successors, (341), 7 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:20,159 INFO L93 Difference]: Finished difference Result 10200 states and 15268 transitions. [2024-11-27 20:34:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:34:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.714285714285715) internal successors, (341), 7 states have internal predecessors, (341), 0 states have call successors, (0), 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 341 [2024-11-27 20:34:20,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:20,176 INFO L225 Difference]: With dead ends: 10200 [2024-11-27 20:34:20,177 INFO L226 Difference]: Without dead ends: 7250 [2024-11-27 20:34:20,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:34:20,182 INFO L435 NwaCegarLoop]: 1570 mSDtfsCounter, 3590 mSDsluCounter, 6263 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:20,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3590 Valid, 7833 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2024-11-27 20:34:20,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6904. [2024-11-27 20:34:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 6903 states have (on average 1.4973200057945821) internal successors, (10336), 6903 states have internal predecessors, (10336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 10336 transitions. [2024-11-27 20:34:20,281 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 10336 transitions. Word has length 341 [2024-11-27 20:34:20,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:20,282 INFO L471 AbstractCegarLoop]: Abstraction has 6904 states and 10336 transitions. [2024-11-27 20:34:20,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.714285714285715) internal successors, (341), 7 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 10336 transitions. [2024-11-27 20:34:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-27 20:34:20,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:20,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:20,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:34:20,291 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:20,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:20,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1601012451, now seen corresponding path program 1 times [2024-11-27 20:34:20,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:20,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571338400] [2024-11-27 20:34:20,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:20,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:24,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:24,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571338400] [2024-11-27 20:34:24,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571338400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:24,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:24,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:34:24,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865454035] [2024-11-27 20:34:24,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:24,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:34:24,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:24,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:34:24,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:34:24,882 INFO L87 Difference]: Start difference. First operand 6904 states and 10336 transitions. Second operand has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:27,295 INFO L93 Difference]: Finished difference Result 10997 states and 16456 transitions. [2024-11-27 20:34:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:34:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 0 states have call successors, (0), 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 342 [2024-11-27 20:34:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:27,313 INFO L225 Difference]: With dead ends: 10997 [2024-11-27 20:34:27,313 INFO L226 Difference]: Without dead ends: 7316 [2024-11-27 20:34:27,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:34:27,319 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 1757 mSDsluCounter, 9742 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 11369 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:27,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 11369 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 20:34:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2024-11-27 20:34:27,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 6962. [2024-11-27 20:34:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 1.4969113633098692) internal successors, (10420), 6961 states have internal predecessors, (10420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 10420 transitions. [2024-11-27 20:34:27,432 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 10420 transitions. Word has length 342 [2024-11-27 20:34:27,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:27,432 INFO L471 AbstractCegarLoop]: Abstraction has 6962 states and 10420 transitions. [2024-11-27 20:34:27,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 10420 transitions. [2024-11-27 20:34:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-27 20:34:27,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:27,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:27,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:34:27,441 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:27,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash 743009211, now seen corresponding path program 1 times [2024-11-27 20:34:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23171655] [2024-11-27 20:34:27,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:30,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:30,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23171655] [2024-11-27 20:34:30,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23171655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:30,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:30,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:34:30,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007131814] [2024-11-27 20:34:30,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:30,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:34:30,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:30,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:34:30,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:34:30,853 INFO L87 Difference]: Start difference. First operand 6962 states and 10420 transitions. Second operand has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:30,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:30,961 INFO L93 Difference]: Finished difference Result 10651 states and 15939 transitions. [2024-11-27 20:34:30,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:30,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 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 342 [2024-11-27 20:34:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:30,979 INFO L225 Difference]: With dead ends: 10651 [2024-11-27 20:34:30,979 INFO L226 Difference]: Without dead ends: 6910 [2024-11-27 20:34:30,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:30,984 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 869 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:30,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 3612 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6910 states. [2024-11-27 20:34:31,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6910 to 5336. [2024-11-27 20:34:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5336 states, 5335 states have (on average 1.497282099343955) internal successors, (7988), 5335 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5336 states to 5336 states and 7988 transitions. [2024-11-27 20:34:31,065 INFO L78 Accepts]: Start accepts. Automaton has 5336 states and 7988 transitions. Word has length 342 [2024-11-27 20:34:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:31,066 INFO L471 AbstractCegarLoop]: Abstraction has 5336 states and 7988 transitions. [2024-11-27 20:34:31,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5336 states and 7988 transitions. [2024-11-27 20:34:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-27 20:34:31,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:31,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:31,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:34:31,073 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:31,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:31,074 INFO L85 PathProgramCache]: Analyzing trace with hash -720470210, now seen corresponding path program 1 times [2024-11-27 20:34:31,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:31,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983182957] [2024-11-27 20:34:31,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:31,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:33,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:33,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983182957] [2024-11-27 20:34:33,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983182957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:33,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:33,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:34:33,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705876300] [2024-11-27 20:34:33,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:33,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:34:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:33,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:34:33,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:33,679 INFO L87 Difference]: Start difference. First operand 5336 states and 7988 transitions. Second operand has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:34,667 INFO L93 Difference]: Finished difference Result 9794 states and 14643 transitions. [2024-11-27 20:34:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:34:34,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 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 343 [2024-11-27 20:34:34,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:34,681 INFO L225 Difference]: With dead ends: 9794 [2024-11-27 20:34:34,681 INFO L226 Difference]: Without dead ends: 6870 [2024-11-27 20:34:34,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:34:34,686 INFO L435 NwaCegarLoop]: 2231 mSDtfsCounter, 2518 mSDsluCounter, 8517 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 10748 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:34,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 10748 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:34:34,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6870 states. [2024-11-27 20:34:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6870 to 6856. [2024-11-27 20:34:34,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6856 states, 6855 states have (on average 1.4835886214442013) internal successors, (10170), 6855 states have internal predecessors, (10170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 10170 transitions. [2024-11-27 20:34:34,782 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 10170 transitions. Word has length 343 [2024-11-27 20:34:34,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:34,783 INFO L471 AbstractCegarLoop]: Abstraction has 6856 states and 10170 transitions. [2024-11-27 20:34:34,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 10170 transitions. [2024-11-27 20:34:34,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-27 20:34:34,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:34,789 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:34,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:34:34,789 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:34,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:34,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1219626416, now seen corresponding path program 1 times [2024-11-27 20:34:34,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:34,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073770555] [2024-11-27 20:34:34,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:37,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:37,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073770555] [2024-11-27 20:34:37,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073770555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:37,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:37,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:34:37,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395605467] [2024-11-27 20:34:37,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:37,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:34:37,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:37,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:34:37,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:37,999 INFO L87 Difference]: Start difference. First operand 6856 states and 10170 transitions. Second operand has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:39,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:39,157 INFO L93 Difference]: Finished difference Result 9816 states and 14596 transitions. [2024-11-27 20:34:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:34:39,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 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 343 [2024-11-27 20:34:39,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:39,166 INFO L225 Difference]: With dead ends: 9816 [2024-11-27 20:34:39,166 INFO L226 Difference]: Without dead ends: 5352 [2024-11-27 20:34:39,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:34:39,171 INFO L435 NwaCegarLoop]: 1284 mSDtfsCounter, 1297 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:39,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 5493 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:34:39,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5352 states. [2024-11-27 20:34:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5352 to 5348. [2024-11-27 20:34:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 5347 states have (on average 1.4961660744342622) internal successors, (8000), 5347 states have internal predecessors, (8000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:39,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 8000 transitions. [2024-11-27 20:34:39,238 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 8000 transitions. Word has length 343 [2024-11-27 20:34:39,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:39,239 INFO L471 AbstractCegarLoop]: Abstraction has 5348 states and 8000 transitions. [2024-11-27 20:34:39,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:39,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 8000 transitions. [2024-11-27 20:34:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-27 20:34:39,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:39,243 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:39,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:34:39,243 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:39,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash -776582756, now seen corresponding path program 1 times [2024-11-27 20:34:39,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:39,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288577165] [2024-11-27 20:34:39,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:39,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:41,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:41,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288577165] [2024-11-27 20:34:41,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288577165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:41,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:41,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:34:41,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247368921] [2024-11-27 20:34:41,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:41,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:34:41,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:41,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:34:41,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:41,757 INFO L87 Difference]: Start difference. First operand 5348 states and 8000 transitions. Second operand has 8 states, 8 states have (on average 43.0) internal successors, (344), 8 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:41,939 INFO L93 Difference]: Finished difference Result 11071 states and 16541 transitions. [2024-11-27 20:34:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:34:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.0) internal successors, (344), 8 states have internal predecessors, (344), 0 states have call successors, (0), 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 344 [2024-11-27 20:34:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:41,947 INFO L225 Difference]: With dead ends: 11071 [2024-11-27 20:34:41,947 INFO L226 Difference]: Without dead ends: 7324 [2024-11-27 20:34:41,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:34:41,954 INFO L435 NwaCegarLoop]: 1570 mSDtfsCounter, 3806 mSDsluCounter, 7834 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3806 SdHoareTripleChecker+Valid, 9404 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:41,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3806 Valid, 9404 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:41,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7324 states. [2024-11-27 20:34:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 6912. [2024-11-27 20:34:42,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6912 states, 6911 states have (on average 1.4950079583273044) internal successors, (10332), 6911 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6912 states to 6912 states and 10332 transitions. [2024-11-27 20:34:42,071 INFO L78 Accepts]: Start accepts. Automaton has 6912 states and 10332 transitions. Word has length 344 [2024-11-27 20:34:42,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:42,071 INFO L471 AbstractCegarLoop]: Abstraction has 6912 states and 10332 transitions. [2024-11-27 20:34:42,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.0) internal successors, (344), 8 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:42,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6912 states and 10332 transitions. [2024-11-27 20:34:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-27 20:34:42,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:42,077 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:42,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:34:42,078 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:42,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2109790043, now seen corresponding path program 1 times [2024-11-27 20:34:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92928149] [2024-11-27 20:34:42,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:45,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:45,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92928149] [2024-11-27 20:34:45,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92928149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:45,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:45,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15401263] [2024-11-27 20:34:45,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:45,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:45,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:45,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:45,468 INFO L87 Difference]: Start difference. First operand 6912 states and 10332 transitions. Second operand has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:46,187 INFO L93 Difference]: Finished difference Result 19838 states and 29620 transitions. [2024-11-27 20:34:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:34:46,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 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 345 [2024-11-27 20:34:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:46,198 INFO L225 Difference]: With dead ends: 19838 [2024-11-27 20:34:46,198 INFO L226 Difference]: Without dead ends: 16118 [2024-11-27 20:34:46,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:46,204 INFO L435 NwaCegarLoop]: 1516 mSDtfsCounter, 1460 mSDsluCounter, 5913 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:46,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 7429 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:34:46,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16118 states. [2024-11-27 20:34:46,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16118 to 12652. [2024-11-27 20:34:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12652 states, 12651 states have (on average 1.4933206861117698) internal successors, (18892), 12651 states have internal predecessors, (18892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12652 states to 12652 states and 18892 transitions. [2024-11-27 20:34:46,380 INFO L78 Accepts]: Start accepts. Automaton has 12652 states and 18892 transitions. Word has length 345 [2024-11-27 20:34:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:46,381 INFO L471 AbstractCegarLoop]: Abstraction has 12652 states and 18892 transitions. [2024-11-27 20:34:46,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 12652 states and 18892 transitions. [2024-11-27 20:34:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-27 20:34:46,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:46,391 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:46,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:34:46,392 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:46,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:46,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1598724205, now seen corresponding path program 1 times [2024-11-27 20:34:46,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:46,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182928318] [2024-11-27 20:34:46,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:46,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:50,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:50,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182928318] [2024-11-27 20:34:50,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182928318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:50,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:50,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:34:50,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417373352] [2024-11-27 20:34:50,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:50,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:34:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:50,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:34:50,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:50,510 INFO L87 Difference]: Start difference. First operand 12652 states and 18892 transitions. Second operand has 9 states, 9 states have (on average 38.44444444444444) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:50,801 INFO L93 Difference]: Finished difference Result 19622 states and 29281 transitions. [2024-11-27 20:34:50,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:34:50,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.44444444444444) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 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 346 [2024-11-27 20:34:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:50,811 INFO L225 Difference]: With dead ends: 19622 [2024-11-27 20:34:50,811 INFO L226 Difference]: Without dead ends: 13068 [2024-11-27 20:34:50,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:34:50,818 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 4204 mSDsluCounter, 8261 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4204 SdHoareTripleChecker+Valid, 9823 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:50,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4204 Valid, 9823 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13068 states. [2024-11-27 20:34:50,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13068 to 12732. [2024-11-27 20:34:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12732 states, 12731 states have (on average 1.4924200769774567) internal successors, (19000), 12731 states have internal predecessors, (19000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12732 states to 12732 states and 19000 transitions. [2024-11-27 20:34:50,994 INFO L78 Accepts]: Start accepts. Automaton has 12732 states and 19000 transitions. Word has length 346 [2024-11-27 20:34:50,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:50,995 INFO L471 AbstractCegarLoop]: Abstraction has 12732 states and 19000 transitions. [2024-11-27 20:34:50,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.44444444444444) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12732 states and 19000 transitions. [2024-11-27 20:34:51,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-27 20:34:51,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:51,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:51,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:34:51,006 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:51,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash 479357673, now seen corresponding path program 1 times [2024-11-27 20:34:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:51,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934125724] [2024-11-27 20:34:51,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:53,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934125724] [2024-11-27 20:34:53,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934125724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:53,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:53,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:34:53,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320001269] [2024-11-27 20:34:53,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:53,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:34:53,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:53,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:34:53,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:53,336 INFO L87 Difference]: Start difference. First operand 12732 states and 19000 transitions. Second operand has 8 states, 8 states have (on average 43.25) internal successors, (346), 8 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:54,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:54,518 INFO L93 Difference]: Finished difference Result 29240 states and 43598 transitions. [2024-11-27 20:34:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:54,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.25) internal successors, (346), 8 states have internal predecessors, (346), 0 states have call successors, (0), 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 346 [2024-11-27 20:34:54,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:54,533 INFO L225 Difference]: With dead ends: 29240 [2024-11-27 20:34:54,533 INFO L226 Difference]: Without dead ends: 22650 [2024-11-27 20:34:54,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:34:54,541 INFO L435 NwaCegarLoop]: 2508 mSDtfsCounter, 2608 mSDsluCounter, 11625 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 14133 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:54,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 14133 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:54,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22650 states. [2024-11-27 20:34:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22650 to 22062. [2024-11-27 20:34:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22062 states, 22061 states have (on average 1.4911382076968405) internal successors, (32896), 22061 states have internal predecessors, (32896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:54,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22062 states to 22062 states and 32896 transitions. [2024-11-27 20:34:54,808 INFO L78 Accepts]: Start accepts. Automaton has 22062 states and 32896 transitions. Word has length 346 [2024-11-27 20:34:54,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:54,809 INFO L471 AbstractCegarLoop]: Abstraction has 22062 states and 32896 transitions. [2024-11-27 20:34:54,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.25) internal successors, (346), 8 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22062 states and 32896 transitions. [2024-11-27 20:34:54,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-27 20:34:54,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:54,825 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:54,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:34:54,825 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:54,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:54,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1665616351, now seen corresponding path program 1 times [2024-11-27 20:34:54,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:54,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923644796] [2024-11-27 20:34:54,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:54,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:58,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:58,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923644796] [2024-11-27 20:34:58,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923644796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:58,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:58,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:34:58,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729340246] [2024-11-27 20:34:58,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:58,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:34:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:58,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:34:58,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:58,895 INFO L87 Difference]: Start difference. First operand 22062 states and 32896 transitions. Second operand has 8 states, 8 states have (on average 43.25) internal successors, (346), 8 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:00,406 INFO L93 Difference]: Finished difference Result 52392 states and 78110 transitions. [2024-11-27 20:35:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:35:00,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.25) internal successors, (346), 8 states have internal predecessors, (346), 0 states have call successors, (0), 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 346 [2024-11-27 20:35:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:00,433 INFO L225 Difference]: With dead ends: 52392 [2024-11-27 20:35:00,433 INFO L226 Difference]: Without dead ends: 41038 [2024-11-27 20:35:00,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:00,447 INFO L435 NwaCegarLoop]: 1283 mSDtfsCounter, 4513 mSDsluCounter, 5122 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4513 SdHoareTripleChecker+Valid, 6405 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:00,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4513 Valid, 6405 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:35:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41038 states. [2024-11-27 20:35:00,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41038 to 28134. [2024-11-27 20:35:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28134 states, 28133 states have (on average 1.4919134112963424) internal successors, (41972), 28133 states have internal predecessors, (41972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28134 states to 28134 states and 41972 transitions. [2024-11-27 20:35:00,784 INFO L78 Accepts]: Start accepts. Automaton has 28134 states and 41972 transitions. Word has length 346 [2024-11-27 20:35:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:00,784 INFO L471 AbstractCegarLoop]: Abstraction has 28134 states and 41972 transitions. [2024-11-27 20:35:00,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.25) internal successors, (346), 8 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:00,785 INFO L276 IsEmpty]: Start isEmpty. Operand 28134 states and 41972 transitions. [2024-11-27 20:35:00,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-27 20:35:00,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:00,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:00,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:35:00,798 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:00,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:00,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1269980452, now seen corresponding path program 1 times [2024-11-27 20:35:00,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:00,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5283878] [2024-11-27 20:35:00,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:00,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:04,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:04,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5283878] [2024-11-27 20:35:04,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5283878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:04,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:04,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:35:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524178634] [2024-11-27 20:35:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:04,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:35:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:04,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:35:04,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:04,798 INFO L87 Difference]: Start difference. First operand 28134 states and 41972 transitions. Second operand has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:04,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:04,994 INFO L93 Difference]: Finished difference Result 66982 states and 99864 transitions. [2024-11-27 20:35:04,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:35:04,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 0 states have call successors, (0), 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 346 [2024-11-27 20:35:04,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:05,029 INFO L225 Difference]: With dead ends: 66982 [2024-11-27 20:35:05,029 INFO L226 Difference]: Without dead ends: 51582 [2024-11-27 20:35:05,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:05,046 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 787 mSDsluCounter, 6275 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:05,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 7846 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:05,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51582 states. [2024-11-27 20:35:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51582 to 49062. [2024-11-27 20:35:05,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49062 states, 49061 states have (on average 1.493080043211512) internal successors, (73252), 49061 states have internal predecessors, (73252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49062 states to 49062 states and 73252 transitions. [2024-11-27 20:35:05,452 INFO L78 Accepts]: Start accepts. Automaton has 49062 states and 73252 transitions. Word has length 346 [2024-11-27 20:35:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:05,452 INFO L471 AbstractCegarLoop]: Abstraction has 49062 states and 73252 transitions. [2024-11-27 20:35:05,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 49062 states and 73252 transitions. [2024-11-27 20:35:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-27 20:35:05,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:05,474 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:05,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 20:35:05,475 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:05,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1885198149, now seen corresponding path program 1 times [2024-11-27 20:35:05,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:05,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068828417] [2024-11-27 20:35:05,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:05,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:08,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:08,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068828417] [2024-11-27 20:35:08,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068828417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:08,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:35:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691260545] [2024-11-27 20:35:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:08,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:35:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:08,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:35:08,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:35:08,803 INFO L87 Difference]: Start difference. First operand 49062 states and 73252 transitions. Second operand has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:09,657 INFO L93 Difference]: Finished difference Result 73825 states and 110223 transitions. [2024-11-27 20:35:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:35:09,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 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 347 [2024-11-27 20:35:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:09,691 INFO L225 Difference]: With dead ends: 73825 [2024-11-27 20:35:09,691 INFO L226 Difference]: Without dead ends: 49070 [2024-11-27 20:35:09,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:35:09,714 INFO L435 NwaCegarLoop]: 1420 mSDtfsCounter, 1704 mSDsluCounter, 5716 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:09,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 7136 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:35:09,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49070 states. [2024-11-27 20:35:10,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49070 to 26632. [2024-11-27 20:35:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26632 states, 26631 states have (on average 1.493597686906237) internal successors, (39776), 26631 states have internal predecessors, (39776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26632 states to 26632 states and 39776 transitions. [2024-11-27 20:35:10,236 INFO L78 Accepts]: Start accepts. Automaton has 26632 states and 39776 transitions. Word has length 347 [2024-11-27 20:35:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:10,236 INFO L471 AbstractCegarLoop]: Abstraction has 26632 states and 39776 transitions. [2024-11-27 20:35:10,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 26632 states and 39776 transitions. [2024-11-27 20:35:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-27 20:35:10,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:10,250 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:10,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 20:35:10,250 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:10,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:10,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1728436166, now seen corresponding path program 1 times [2024-11-27 20:35:10,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:10,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789509102] [2024-11-27 20:35:10,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:10,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:12,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789509102] [2024-11-27 20:35:12,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789509102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:12,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:12,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:35:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313804312] [2024-11-27 20:35:12,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:12,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:35:12,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:12,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:35:12,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:12,780 INFO L87 Difference]: Start difference. First operand 26632 states and 39776 transitions. Second operand has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:13,501 INFO L93 Difference]: Finished difference Result 52418 states and 78280 transitions. [2024-11-27 20:35:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:35:13,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2024-11-27 20:35:13,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:13,520 INFO L225 Difference]: With dead ends: 52418 [2024-11-27 20:35:13,520 INFO L226 Difference]: Without dead ends: 26792 [2024-11-27 20:35:13,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:13,534 INFO L435 NwaCegarLoop]: 1431 mSDtfsCounter, 1524 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:13,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 7146 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:35:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26792 states. [2024-11-27 20:35:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26792 to 26792. [2024-11-27 20:35:13,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26792 states, 26791 states have (on average 1.491844276062857) internal successors, (39968), 26791 states have internal predecessors, (39968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26792 states to 26792 states and 39968 transitions. [2024-11-27 20:35:13,758 INFO L78 Accepts]: Start accepts. Automaton has 26792 states and 39968 transitions. Word has length 348 [2024-11-27 20:35:13,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:13,758 INFO L471 AbstractCegarLoop]: Abstraction has 26792 states and 39968 transitions. [2024-11-27 20:35:13,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand 26792 states and 39968 transitions. [2024-11-27 20:35:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-27 20:35:13,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:13,774 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:13,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:35:13,774 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:13,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810357, now seen corresponding path program 1 times [2024-11-27 20:35:13,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:13,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436715258] [2024-11-27 20:35:13,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:13,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:15,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:15,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:15,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436715258] [2024-11-27 20:35:15,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436715258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:15,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:15,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:35:15,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728392795] [2024-11-27 20:35:15,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:15,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:35:15,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:15,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:35:15,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:15,843 INFO L87 Difference]: Start difference. First operand 26792 states and 39968 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:16,227 INFO L93 Difference]: Finished difference Result 40420 states and 60295 transitions. [2024-11-27 20:35:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:35:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2024-11-27 20:35:16,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:16,244 INFO L225 Difference]: With dead ends: 40420 [2024-11-27 20:35:16,244 INFO L226 Difference]: Without dead ends: 26800 [2024-11-27 20:35:16,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:16,253 INFO L435 NwaCegarLoop]: 1435 mSDtfsCounter, 1268 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:16,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 4301 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:35:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26800 states. [2024-11-27 20:35:16,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26800 to 26798. [2024-11-27 20:35:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26798 states, 26797 states have (on average 1.491734149345076) internal successors, (39974), 26797 states have internal predecessors, (39974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26798 states to 26798 states and 39974 transitions. [2024-11-27 20:35:16,619 INFO L78 Accepts]: Start accepts. Automaton has 26798 states and 39974 transitions. Word has length 348 [2024-11-27 20:35:16,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:16,620 INFO L471 AbstractCegarLoop]: Abstraction has 26798 states and 39974 transitions. [2024-11-27 20:35:16,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 26798 states and 39974 transitions. [2024-11-27 20:35:16,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-27 20:35:16,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:16,634 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:16,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 20:35:16,635 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:16,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash 779371729, now seen corresponding path program 1 times [2024-11-27 20:35:16,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:16,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997927678] [2024-11-27 20:35:16,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:16,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:20,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:20,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997927678] [2024-11-27 20:35:20,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997927678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:20,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:20,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:35:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682612961] [2024-11-27 20:35:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:20,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:35:20,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:20,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:35:20,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:35:20,340 INFO L87 Difference]: Start difference. First operand 26798 states and 39974 transitions. Second operand has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:22,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:22,396 INFO L93 Difference]: Finished difference Result 52383 states and 78148 transitions. [2024-11-27 20:35:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:35:22,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2024-11-27 20:35:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:22,414 INFO L225 Difference]: With dead ends: 52383 [2024-11-27 20:35:22,414 INFO L226 Difference]: Without dead ends: 38738 [2024-11-27 20:35:22,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:35:22,420 INFO L435 NwaCegarLoop]: 1211 mSDtfsCounter, 2128 mSDsluCounter, 5948 mSDsCounter, 0 mSdLazyCounter, 3095 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:22,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 7159 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3095 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:35:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38738 states. [2024-11-27 20:35:22,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38738 to 38544. [2024-11-27 20:35:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38544 states, 38543 states have (on average 1.4924629634434268) internal successors, (57524), 38543 states have internal predecessors, (57524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:22,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38544 states to 38544 states and 57524 transitions. [2024-11-27 20:35:22,677 INFO L78 Accepts]: Start accepts. Automaton has 38544 states and 57524 transitions. Word has length 349 [2024-11-27 20:35:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:22,677 INFO L471 AbstractCegarLoop]: Abstraction has 38544 states and 57524 transitions. [2024-11-27 20:35:22,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:22,677 INFO L276 IsEmpty]: Start isEmpty. Operand 38544 states and 57524 transitions. [2024-11-27 20:35:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-27 20:35:22,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:22,689 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:22,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 20:35:22,689 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:22,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash -580807992, now seen corresponding path program 1 times [2024-11-27 20:35:22,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:22,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582602071] [2024-11-27 20:35:22,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:26,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:26,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582602071] [2024-11-27 20:35:26,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582602071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:26,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:26,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:35:26,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496735471] [2024-11-27 20:35:26,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:26,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:35:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:26,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:35:26,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:35:26,609 INFO L87 Difference]: Start difference. First operand 38544 states and 57524 transitions. Second operand has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:28,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:28,548 INFO L93 Difference]: Finished difference Result 58150 states and 86776 transitions. [2024-11-27 20:35:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:35:28,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2024-11-27 20:35:28,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:28,584 INFO L225 Difference]: With dead ends: 58150 [2024-11-27 20:35:28,584 INFO L226 Difference]: Without dead ends: 38592 [2024-11-27 20:35:28,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:35:28,599 INFO L435 NwaCegarLoop]: 1114 mSDtfsCounter, 1576 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 5563 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:28,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 5563 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:35:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38592 states. [2024-11-27 20:35:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38592 to 38584. [2024-11-27 20:35:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38584 states, 38583 states have (on average 1.4921597594795635) internal successors, (57572), 38583 states have internal predecessors, (57572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38584 states to 38584 states and 57572 transitions. [2024-11-27 20:35:28,907 INFO L78 Accepts]: Start accepts. Automaton has 38584 states and 57572 transitions. Word has length 349 [2024-11-27 20:35:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:28,907 INFO L471 AbstractCegarLoop]: Abstraction has 38584 states and 57572 transitions. [2024-11-27 20:35:28,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 38584 states and 57572 transitions. [2024-11-27 20:35:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-27 20:35:28,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:28,920 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 20:35:28,921 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:28,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash 441836189, now seen corresponding path program 1 times [2024-11-27 20:35:28,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:28,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120426152] [2024-11-27 20:35:28,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:29,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:29,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120426152] [2024-11-27 20:35:29,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120426152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:29,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:29,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:35:29,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962353031] [2024-11-27 20:35:29,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:29,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:29,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:29,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:29,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:29,843 INFO L87 Difference]: Start difference. First operand 38584 states and 57572 transitions. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:30,086 INFO L93 Difference]: Finished difference Result 76906 states and 114744 transitions. [2024-11-27 20:35:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2024-11-27 20:35:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:30,118 INFO L225 Difference]: With dead ends: 76906 [2024-11-27 20:35:30,118 INFO L226 Difference]: Without dead ends: 38616 [2024-11-27 20:35:30,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:30,140 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 0 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:30,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4714 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:30,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38616 states. [2024-11-27 20:35:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38616 to 38616. [2024-11-27 20:35:30,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38616 states, 38615 states have (on average 1.4917519098795804) internal successors, (57604), 38615 states have internal predecessors, (57604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38616 states to 38616 states and 57604 transitions. [2024-11-27 20:35:30,702 INFO L78 Accepts]: Start accepts. Automaton has 38616 states and 57604 transitions. Word has length 349 [2024-11-27 20:35:30,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:30,702 INFO L471 AbstractCegarLoop]: Abstraction has 38616 states and 57604 transitions. [2024-11-27 20:35:30,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:30,703 INFO L276 IsEmpty]: Start isEmpty. Operand 38616 states and 57604 transitions. [2024-11-27 20:35:30,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-27 20:35:30,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:30,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:30,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:35:30,716 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:30,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:30,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1693640422, now seen corresponding path program 1 times [2024-11-27 20:35:30,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:30,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002845991] [2024-11-27 20:35:30,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:30,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:36,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:36,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002845991] [2024-11-27 20:35:36,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002845991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:36,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:36,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:35:36,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474275279] [2024-11-27 20:35:36,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:36,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:35:36,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:36,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:35:36,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:35:36,878 INFO L87 Difference]: Start difference. First operand 38616 states and 57604 transitions. Second operand has 10 states, 10 states have (on average 35.0) internal successors, (350), 10 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:38,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:38,769 INFO L93 Difference]: Finished difference Result 83030 states and 123913 transitions. [2024-11-27 20:35:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:35:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.0) internal successors, (350), 10 states have internal predecessors, (350), 0 states have call successors, (0), 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 350 [2024-11-27 20:35:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:38,796 INFO L225 Difference]: With dead ends: 83030 [2024-11-27 20:35:38,796 INFO L226 Difference]: Without dead ends: 40064 [2024-11-27 20:35:38,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:35:38,817 INFO L435 NwaCegarLoop]: 1965 mSDtfsCounter, 1976 mSDsluCounter, 12987 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 14952 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:38,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1976 Valid, 14952 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:35:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40064 states. [2024-11-27 20:35:39,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40064 to 39744. [2024-11-27 20:35:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39744 states, 39743 states have (on average 1.4914827768412047) internal successors, (59276), 39743 states have internal predecessors, (59276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39744 states to 39744 states and 59276 transitions. [2024-11-27 20:35:39,246 INFO L78 Accepts]: Start accepts. Automaton has 39744 states and 59276 transitions. Word has length 350 [2024-11-27 20:35:39,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:39,247 INFO L471 AbstractCegarLoop]: Abstraction has 39744 states and 59276 transitions. [2024-11-27 20:35:39,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.0) internal successors, (350), 10 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:39,247 INFO L276 IsEmpty]: Start isEmpty. Operand 39744 states and 59276 transitions. [2024-11-27 20:35:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 20:35:39,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:39,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:39,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 20:35:39,266 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:39,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1021351478, now seen corresponding path program 1 times [2024-11-27 20:35:39,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:39,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112284184] [2024-11-27 20:35:39,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:39,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:39,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:39,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112284184] [2024-11-27 20:35:39,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112284184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:39,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:39,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:35:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281798693] [2024-11-27 20:35:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:39,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:35:39,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:39,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:35:39,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:39,934 INFO L87 Difference]: Start difference. First operand 39744 states and 59276 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:40,111 INFO L93 Difference]: Finished difference Result 78806 states and 117468 transitions. [2024-11-27 20:35:40,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:35:40,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-27 20:35:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:40,140 INFO L225 Difference]: With dead ends: 78806 [2024-11-27 20:35:40,140 INFO L226 Difference]: Without dead ends: 40640 [2024-11-27 20:35:40,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:40,160 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 16 mSDsluCounter, 4721 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:40,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6300 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40640 states. [2024-11-27 20:35:40,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40640 to 40320. [2024-11-27 20:35:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40320 states, 40319 states have (on average 1.4892234430417421) internal successors, (60044), 40319 states have internal predecessors, (60044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40320 states to 40320 states and 60044 transitions. [2024-11-27 20:35:40,689 INFO L78 Accepts]: Start accepts. Automaton has 40320 states and 60044 transitions. Word has length 351 [2024-11-27 20:35:40,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:40,689 INFO L471 AbstractCegarLoop]: Abstraction has 40320 states and 60044 transitions. [2024-11-27 20:35:40,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 40320 states and 60044 transitions. [2024-11-27 20:35:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 20:35:40,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:40,703 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:40,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 20:35:40,704 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:40,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:40,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1088335482, now seen corresponding path program 1 times [2024-11-27 20:35:40,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:40,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844538112] [2024-11-27 20:35:40,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:40,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:44,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:44,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844538112] [2024-11-27 20:35:44,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844538112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:44,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:44,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:35:44,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363557265] [2024-11-27 20:35:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:44,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:35:44,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:44,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:35:44,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:44,652 INFO L87 Difference]: Start difference. First operand 40320 states and 60044 transitions. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:45,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:45,591 INFO L93 Difference]: Finished difference Result 61272 states and 91212 transitions. [2024-11-27 20:35:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:35:45,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-27 20:35:45,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:45,624 INFO L225 Difference]: With dead ends: 61272 [2024-11-27 20:35:45,625 INFO L226 Difference]: Without dead ends: 40802 [2024-11-27 20:35:45,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:45,642 INFO L435 NwaCegarLoop]: 1402 mSDtfsCounter, 2481 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 5596 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:45,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 5596 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:35:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40802 states. [2024-11-27 20:35:46,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40802 to 40328. [2024-11-27 20:35:46,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40328 states, 40327 states have (on average 1.4891263917474644) internal successors, (60052), 40327 states have internal predecessors, (60052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:46,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40328 states to 40328 states and 60052 transitions. [2024-11-27 20:35:46,155 INFO L78 Accepts]: Start accepts. Automaton has 40328 states and 60052 transitions. Word has length 351 [2024-11-27 20:35:46,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:46,156 INFO L471 AbstractCegarLoop]: Abstraction has 40328 states and 60052 transitions. [2024-11-27 20:35:46,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand 40328 states and 60052 transitions. [2024-11-27 20:35:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 20:35:46,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:46,182 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:46,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 20:35:46,182 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:46,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:46,183 INFO L85 PathProgramCache]: Analyzing trace with hash -614434949, now seen corresponding path program 1 times [2024-11-27 20:35:46,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:46,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216131078] [2024-11-27 20:35:46,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:46,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:53,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:53,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216131078] [2024-11-27 20:35:53,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216131078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:53,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:53,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:35:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283559206] [2024-11-27 20:35:53,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:53,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:35:53,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:53,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:35:53,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:35:53,276 INFO L87 Difference]: Start difference. First operand 40328 states and 60052 transitions. Second operand has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:56,076 INFO L93 Difference]: Finished difference Result 60716 states and 90412 transitions. [2024-11-27 20:35:56,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:35:56,076 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-27 20:35:56,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:56,103 INFO L225 Difference]: With dead ends: 60716 [2024-11-27 20:35:56,103 INFO L226 Difference]: Without dead ends: 40324 [2024-11-27 20:35:56,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:35:56,118 INFO L435 NwaCegarLoop]: 1128 mSDtfsCounter, 1665 mSDsluCounter, 5970 mSDsCounter, 0 mSdLazyCounter, 2851 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 7098 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:56,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 7098 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2851 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:35:56,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40324 states. [2024-11-27 20:35:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40324 to 34424. [2024-11-27 20:35:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34424 states, 34423 states have (on average 1.4885977398832175) internal successors, (51242), 34423 states have internal predecessors, (51242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34424 states to 34424 states and 51242 transitions. [2024-11-27 20:35:56,426 INFO L78 Accepts]: Start accepts. Automaton has 34424 states and 51242 transitions. Word has length 351 [2024-11-27 20:35:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:56,427 INFO L471 AbstractCegarLoop]: Abstraction has 34424 states and 51242 transitions. [2024-11-27 20:35:56,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 34424 states and 51242 transitions. [2024-11-27 20:35:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 20:35:56,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:56,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:56,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-27 20:35:56,440 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:56,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:56,441 INFO L85 PathProgramCache]: Analyzing trace with hash 191735961, now seen corresponding path program 1 times [2024-11-27 20:35:56,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:56,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666532162] [2024-11-27 20:35:56,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:56,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:36:01,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:01,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666532162] [2024-11-27 20:36:01,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666532162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:01,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:01,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:36:01,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237472318] [2024-11-27 20:36:01,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:01,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:36:01,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:01,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:36:01,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:36:01,022 INFO L87 Difference]: Start difference. First operand 34424 states and 51242 transitions. Second operand has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:03,756 INFO L93 Difference]: Finished difference Result 109257 states and 162824 transitions. [2024-11-27 20:36:03,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:36:03,757 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-27 20:36:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:03,815 INFO L225 Difference]: With dead ends: 109257 [2024-11-27 20:36:03,815 INFO L226 Difference]: Without dead ends: 87065 [2024-11-27 20:36:03,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:36:03,840 INFO L435 NwaCegarLoop]: 2487 mSDtfsCounter, 4284 mSDsluCounter, 15130 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 17617 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:03,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 17617 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 20:36:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87065 states. [2024-11-27 20:36:04,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87065 to 61749. [2024-11-27 20:36:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61749 states, 61748 states have (on average 1.490331670661398) internal successors, (92025), 61748 states have internal predecessors, (92025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61749 states to 61749 states and 92025 transitions. [2024-11-27 20:36:04,461 INFO L78 Accepts]: Start accepts. Automaton has 61749 states and 92025 transitions. Word has length 351 [2024-11-27 20:36:04,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:04,462 INFO L471 AbstractCegarLoop]: Abstraction has 61749 states and 92025 transitions. [2024-11-27 20:36:04,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:04,462 INFO L276 IsEmpty]: Start isEmpty. Operand 61749 states and 92025 transitions. [2024-11-27 20:36:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 20:36:04,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:04,486 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:04,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-27 20:36:04,486 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:04,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:04,487 INFO L85 PathProgramCache]: Analyzing trace with hash 265602921, now seen corresponding path program 1 times [2024-11-27 20:36:04,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:04,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422891231] [2024-11-27 20:36:04,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:04,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:36:08,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:08,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422891231] [2024-11-27 20:36:08,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422891231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:08,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:08,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:36:08,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561091110] [2024-11-27 20:36:08,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:08,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:08,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:08,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:08,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:08,206 INFO L87 Difference]: Start difference. First operand 61749 states and 92025 transitions. Second operand has 7 states, 7 states have (on average 50.142857142857146) internal successors, (351), 7 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:10,400 INFO L93 Difference]: Finished difference Result 140834 states and 209932 transitions. [2024-11-27 20:36:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:10,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.142857142857146) internal successors, (351), 7 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-27 20:36:10,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:10,469 INFO L225 Difference]: With dead ends: 140834 [2024-11-27 20:36:10,470 INFO L226 Difference]: Without dead ends: 109159 [2024-11-27 20:36:10,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:36:10,498 INFO L435 NwaCegarLoop]: 2355 mSDtfsCounter, 2567 mSDsluCounter, 8337 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 10692 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:10,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 10692 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:36:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109159 states. [2024-11-27 20:36:11,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109159 to 63985. [2024-11-27 20:36:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63985 states, 63984 states have (on average 1.4892629407351838) internal successors, (95289), 63984 states have internal predecessors, (95289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63985 states to 63985 states and 95289 transitions. [2024-11-27 20:36:11,165 INFO L78 Accepts]: Start accepts. Automaton has 63985 states and 95289 transitions. Word has length 351 [2024-11-27 20:36:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:11,165 INFO L471 AbstractCegarLoop]: Abstraction has 63985 states and 95289 transitions. [2024-11-27 20:36:11,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.142857142857146) internal successors, (351), 7 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 63985 states and 95289 transitions. [2024-11-27 20:36:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-27 20:36:11,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:11,190 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:11,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-27 20:36:11,190 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:11,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1174192977, now seen corresponding path program 1 times [2024-11-27 20:36:11,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:11,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322404311] [2024-11-27 20:36:11,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:11,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:36:15,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:15,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322404311] [2024-11-27 20:36:15,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322404311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:15,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:15,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:36:15,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789046274] [2024-11-27 20:36:15,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:15,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:15,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:15,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:15,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:15,089 INFO L87 Difference]: Start difference. First operand 63985 states and 95289 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 7 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:16,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:16,461 INFO L93 Difference]: Finished difference Result 96951 states and 144352 transitions. [2024-11-27 20:36:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 7 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2024-11-27 20:36:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:16,505 INFO L225 Difference]: With dead ends: 96951 [2024-11-27 20:36:16,505 INFO L226 Difference]: Without dead ends: 64105 [2024-11-27 20:36:16,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:16,529 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 5 mSDsluCounter, 6419 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7987 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:16,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7987 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:36:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64105 states. [2024-11-27 20:36:16,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64105 to 64085. [2024-11-27 20:36:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64085 states, 64084 states have (on average 1.488811559827726) internal successors, (95409), 64084 states have internal predecessors, (95409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64085 states to 64085 states and 95409 transitions. [2024-11-27 20:36:17,063 INFO L78 Accepts]: Start accepts. Automaton has 64085 states and 95409 transitions. Word has length 352 [2024-11-27 20:36:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:17,063 INFO L471 AbstractCegarLoop]: Abstraction has 64085 states and 95409 transitions. [2024-11-27 20:36:17,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 7 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 64085 states and 95409 transitions. [2024-11-27 20:36:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-27 20:36:17,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:17,089 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:17,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 20:36:17,090 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:17,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:17,090 INFO L85 PathProgramCache]: Analyzing trace with hash 992873453, now seen corresponding path program 1 times [2024-11-27 20:36:17,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:17,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418108714] [2024-11-27 20:36:17,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:17,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:36:19,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:19,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418108714] [2024-11-27 20:36:19,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418108714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:19,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:19,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:36:19,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123794618] [2024-11-27 20:36:19,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:19,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:36:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:19,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:36:19,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:19,708 INFO L87 Difference]: Start difference. First operand 64085 states and 95409 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:20,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:20,741 INFO L93 Difference]: Finished difference Result 97321 states and 144822 transitions. [2024-11-27 20:36:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:36:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2024-11-27 20:36:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:20,795 INFO L225 Difference]: With dead ends: 97321 [2024-11-27 20:36:20,795 INFO L226 Difference]: Without dead ends: 64285 [2024-11-27 20:36:20,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:36:20,821 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 1319 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:20,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 3862 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:36:20,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64285 states. [2024-11-27 20:36:21,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64285 to 64285. [2024-11-27 20:36:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64285 states, 64284 states have (on average 1.487913011013627) internal successors, (95649), 64284 states have internal predecessors, (95649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64285 states to 64285 states and 95649 transitions. [2024-11-27 20:36:21,786 INFO L78 Accepts]: Start accepts. Automaton has 64285 states and 95649 transitions. Word has length 352 [2024-11-27 20:36:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:21,786 INFO L471 AbstractCegarLoop]: Abstraction has 64285 states and 95649 transitions. [2024-11-27 20:36:21,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:21,787 INFO L276 IsEmpty]: Start isEmpty. Operand 64285 states and 95649 transitions. [2024-11-27 20:36:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-27 20:36:21,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:21,812 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:21,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-27 20:36:21,812 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:21,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:21,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1948373012, now seen corresponding path program 1 times [2024-11-27 20:36:21,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:21,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457229657] [2024-11-27 20:36:21,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:21,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:36:25,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:25,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457229657] [2024-11-27 20:36:25,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457229657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:25,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:25,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:36:25,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563738720] [2024-11-27 20:36:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:25,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:25,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:25,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:25,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:25,928 INFO L87 Difference]: Start difference. First operand 64285 states and 95649 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 7 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:27,184 INFO L93 Difference]: Finished difference Result 111121 states and 165392 transitions. [2024-11-27 20:36:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:27,185 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 7 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2024-11-27 20:36:27,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:27,229 INFO L225 Difference]: With dead ends: 111121 [2024-11-27 20:36:27,229 INFO L226 Difference]: Without dead ends: 64485 [2024-11-27 20:36:27,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:27,257 INFO L435 NwaCegarLoop]: 1287 mSDtfsCounter, 1499 mSDsluCounter, 5133 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:27,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 6420 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:36:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64485 states. [2024-11-27 20:36:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64485 to 64485. [2024-11-27 20:36:28,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64485 states, 64484 states have (on average 1.487020035977917) internal successors, (95889), 64484 states have internal predecessors, (95889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64485 states to 64485 states and 95889 transitions. [2024-11-27 20:36:28,111 INFO L78 Accepts]: Start accepts. Automaton has 64485 states and 95889 transitions. Word has length 352 [2024-11-27 20:36:28,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:28,111 INFO L471 AbstractCegarLoop]: Abstraction has 64485 states and 95889 transitions. [2024-11-27 20:36:28,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 7 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:36:28,111 INFO L276 IsEmpty]: Start isEmpty. Operand 64485 states and 95889 transitions. [2024-11-27 20:36:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-27 20:36:28,134 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:28,134 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:28,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-27 20:36:28,135 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:28,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash -998045519, now seen corresponding path program 1 times [2024-11-27 20:36:28,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:28,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93827578] [2024-11-27 20:36:28,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:28,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:36:30,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:30,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93827578] [2024-11-27 20:36:30,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93827578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:30,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:30,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:36:30,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473827188] [2024-11-27 20:36:30,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:30,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:36:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:30,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:36:30,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:30,775 INFO L87 Difference]: Start difference. First operand 64485 states and 95889 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)