./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/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_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/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 32bit --witnessprinter.graph.data.programhash 3fb6d49eff13d62236c26c76112d3edbdbe5247c358b6cacd9ecacff32cf6529 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:56,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:56,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:06:56,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:56,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:56,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:56,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:56,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:56,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:56,511 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:56,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:56,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:56,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:56,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:56,514 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:56,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:56,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:06:56,514 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:56,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:56,515 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:56,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:56,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:56,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:56,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:56,517 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_cf2c29f1-13cc-4f5b-908f-dbcda7982897/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fb6d49eff13d62236c26c76112d3edbdbe5247c358b6cacd9ecacff32cf6529 [2024-11-28 03:06:56,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:56,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:56,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:56,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:56,877 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:56,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-28.i [2024-11-28 03:06:59,921 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/data/d30a7e264/ddc1a45f5fca4a6db698f7cea6d904ab/FLAG99f0efc06 [2024-11-28 03:07:00,298 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:07:00,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-28.i [2024-11-28 03:07:00,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/data/d30a7e264/ddc1a45f5fca4a6db698f7cea6d904ab/FLAG99f0efc06 [2024-11-28 03:07:00,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/data/d30a7e264/ddc1a45f5fca4a6db698f7cea6d904ab [2024-11-28 03:07:00,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:07:00,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:07:00,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:00,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:07:00,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:07:00,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:00" (1/1) ... [2024-11-28 03:07:00,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ca361b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:00, skipping insertion in model container [2024-11-28 03:07:00,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:00" (1/1) ... [2024-11-28 03:07:00,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:07:00,699 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_cf2c29f1-13cc-4f5b-908f-dbcda7982897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-28.i[916,929] [2024-11-28 03:07:00,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:00,887 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:07:00,900 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_cf2c29f1-13cc-4f5b-908f-dbcda7982897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-28.i[916,929] [2024-11-28 03:07:00,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:01,004 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:07:01,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01 WrapperNode [2024-11-28 03:07:01,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:01,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:01,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:07:01,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:07:01,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,150 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2024-11-28 03:07:01,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:01,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:07:01,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:07:01,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:07:01,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,267 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:07:01,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,303 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:07:01,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:07:01,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:07:01,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:07:01,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:01,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:01,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:07:01,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:07:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:07:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:07:01,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:07:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:07:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:07:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:07:01,570 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:07:01,572 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:07:02,724 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-28 03:07:02,725 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:07:02,743 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:07:02,744 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:07:02,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:02 BoogieIcfgContainer [2024-11-28 03:07:02,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:07:02,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:07:02,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:07:02,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:07:02,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:00" (1/3) ... [2024-11-28 03:07:02,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69896ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:02, skipping insertion in model container [2024-11-28 03:07:02,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (2/3) ... [2024-11-28 03:07:02,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69896ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:02, skipping insertion in model container [2024-11-28 03:07:02,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:02" (3/3) ... [2024-11-28 03:07:02,758 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-28.i [2024-11-28 03:07:02,774 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:07:02,779 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-28.i that has 2 procedures, 172 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:07:02,857 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:02,872 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;@2458ec67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:02,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:07:02,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 126 states have (on average 1.5158730158730158) internal successors, (191), 127 states have internal predecessors, (191), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:02,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-28 03:07:02,904 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:02,905 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:02,906 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:02,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:02,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2037227511, now seen corresponding path program 1 times [2024-11-28 03:07:02,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:02,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717359409] [2024-11-28 03:07:02,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:02,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2024-11-28 03:07:03,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:03,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717359409] [2024-11-28 03:07:03,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717359409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:03,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118472532] [2024-11-28 03:07:03,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:03,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:03,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:03,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:03,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:07:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:04,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:07:04,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2024-11-28 03:07:04,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:04,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118472532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:04,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:04,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:07:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396206582] [2024-11-28 03:07:04,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:04,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:07:04,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:04,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:07:04,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:04,205 INFO L87 Difference]: Start difference. First operand has 172 states, 126 states have (on average 1.5158730158730158) internal successors, (191), 127 states have internal predecessors, (191), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:07:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:04,250 INFO L93 Difference]: Finished difference Result 337 states and 591 transitions. [2024-11-28 03:07:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:07:04,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 297 [2024-11-28 03:07:04,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:04,260 INFO L225 Difference]: With dead ends: 337 [2024-11-28 03:07:04,261 INFO L226 Difference]: Without dead ends: 168 [2024-11-28 03:07:04,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:04,268 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:04,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-28 03:07:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-28 03:07:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 123 states have (on average 1.4959349593495934) internal successors, (184), 123 states have internal predecessors, (184), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 270 transitions. [2024-11-28 03:07:04,340 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 270 transitions. Word has length 297 [2024-11-28 03:07:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:04,340 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 270 transitions. [2024-11-28 03:07:04,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:07:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 270 transitions. [2024-11-28 03:07:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-28 03:07:04,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:04,348 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:04,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:07:04,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:07:04,549 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:04,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:04,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1759020349, now seen corresponding path program 1 times [2024-11-28 03:07:04,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:04,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994192686] [2024-11-28 03:07:04,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:04,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:06,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:07:06,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:06,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994192686] [2024-11-28 03:07:06,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994192686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:06,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:06,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:06,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146326934] [2024-11-28 03:07:06,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:06,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:06,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:06,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:06,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:06,880 INFO L87 Difference]: Start difference. First operand 168 states and 270 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:07,443 INFO L93 Difference]: Finished difference Result 447 states and 717 transitions. [2024-11-28 03:07:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:07:07,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 297 [2024-11-28 03:07:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:07,453 INFO L225 Difference]: With dead ends: 447 [2024-11-28 03:07:07,456 INFO L226 Difference]: Without dead ends: 282 [2024-11-28 03:07:07,458 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 [2024-11-28 03:07:07,459 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 179 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:07,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 684 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:07:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-28 03:07:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 187. [2024-11-28 03:07:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 142 states have (on average 1.5140845070422535) internal successors, (215), 142 states have internal predecessors, (215), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 301 transitions. [2024-11-28 03:07:07,506 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 301 transitions. Word has length 297 [2024-11-28 03:07:07,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:07,510 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 301 transitions. [2024-11-28 03:07:07,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 301 transitions. [2024-11-28 03:07:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-28 03:07:07,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:07,518 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:07,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:07:07,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:07,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:07,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1721086533, now seen corresponding path program 1 times [2024-11-28 03:07:07,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:07,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952548415] [2024-11-28 03:07:07,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:07,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:07:08,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952548415] [2024-11-28 03:07:08,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952548415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:08,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:08,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:08,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374102570] [2024-11-28 03:07:08,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:08,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:08,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:08,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:08,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:08,529 INFO L87 Difference]: Start difference. First operand 187 states and 301 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:08,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:08,614 INFO L93 Difference]: Finished difference Result 371 states and 599 transitions. [2024-11-28 03:07:08,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:07:08,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 297 [2024-11-28 03:07:08,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:08,619 INFO L225 Difference]: With dead ends: 371 [2024-11-28 03:07:08,620 INFO L226 Difference]: Without dead ends: 187 [2024-11-28 03:07:08,621 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 [2024-11-28 03:07:08,621 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 0 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:08,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 781 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-28 03:07:08,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-11-28 03:07:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 142 states have (on average 1.5070422535211268) internal successors, (214), 142 states have internal predecessors, (214), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 300 transitions. [2024-11-28 03:07:08,637 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 300 transitions. Word has length 297 [2024-11-28 03:07:08,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:08,638 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 300 transitions. [2024-11-28 03:07:08,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:08,639 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 300 transitions. [2024-11-28 03:07:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-28 03:07:08,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:08,643 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:08,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:07:08,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:08,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:08,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1298384707, now seen corresponding path program 1 times [2024-11-28 03:07:08,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:08,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645221727] [2024-11-28 03:07:08,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-28 03:07:10,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:10,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645221727] [2024-11-28 03:07:10,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645221727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:10,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315128286] [2024-11-28 03:07:10,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:10,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:10,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:10,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:10,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:07:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:11,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:07:11,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 588 proven. 9 refuted. 0 times theorem prover too weak. 3015 trivial. 0 not checked. [2024-11-28 03:07:11,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 117 proven. 9 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-28 03:07:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315128286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:07:11,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:07:11,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-11-28 03:07:11,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805710805] [2024-11-28 03:07:11,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:07:11,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:07:11,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:11,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:07:11,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:07:11,802 INFO L87 Difference]: Start difference. First operand 187 states and 300 transitions. Second operand has 11 states, 11 states have (on average 17.272727272727273) internal successors, (190), 11 states have internal predecessors, (190), 4 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2024-11-28 03:07:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:12,558 INFO L93 Difference]: Finished difference Result 383 states and 607 transitions. [2024-11-28 03:07:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:07:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.272727272727273) internal successors, (190), 11 states have internal predecessors, (190), 4 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) Word has length 297 [2024-11-28 03:07:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:12,561 INFO L225 Difference]: With dead ends: 383 [2024-11-28 03:07:12,561 INFO L226 Difference]: Without dead ends: 199 [2024-11-28 03:07:12,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:07:12,563 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 567 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:12,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 729 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:07:12,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-28 03:07:12,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2024-11-28 03:07:12,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 148 states have (on average 1.4594594594594594) internal successors, (216), 148 states have internal predecessors, (216), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 302 transitions. [2024-11-28 03:07:12,606 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 302 transitions. Word has length 297 [2024-11-28 03:07:12,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:12,609 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 302 transitions. [2024-11-28 03:07:12,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.272727272727273) internal successors, (190), 11 states have internal predecessors, (190), 4 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2024-11-28 03:07:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 302 transitions. [2024-11-28 03:07:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:07:12,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:12,615 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:12,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:12,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:12,816 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:12,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:12,817 INFO L85 PathProgramCache]: Analyzing trace with hash 631795756, now seen corresponding path program 1 times [2024-11-28 03:07:12,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:12,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426812759] [2024-11-28 03:07:12,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:12,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:07:14,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:14,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426812759] [2024-11-28 03:07:14,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426812759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:14,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:14,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:14,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368146059] [2024-11-28 03:07:14,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:14,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:14,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:14,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:14,142 INFO L87 Difference]: Start difference. First operand 195 states and 302 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:14,276 INFO L93 Difference]: Finished difference Result 479 states and 743 transitions. [2024-11-28 03:07:14,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:07:14,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 299 [2024-11-28 03:07:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:14,279 INFO L225 Difference]: With dead ends: 479 [2024-11-28 03:07:14,279 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 03:07:14,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:14,281 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 328 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:14,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 484 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 03:07:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 224. [2024-11-28 03:07:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 177 states have (on average 1.463276836158192) internal successors, (259), 177 states have internal predecessors, (259), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 345 transitions. [2024-11-28 03:07:14,310 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 345 transitions. Word has length 299 [2024-11-28 03:07:14,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:14,311 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 345 transitions. [2024-11-28 03:07:14,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:14,312 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 345 transitions. [2024-11-28 03:07:14,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:07:14,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:14,319 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:14,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:07:14,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:14,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:14,322 INFO L85 PathProgramCache]: Analyzing trace with hash 150715498, now seen corresponding path program 1 times [2024-11-28 03:07:14,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:14,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916122772] [2024-11-28 03:07:14,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:14,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:07:14,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:14,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916122772] [2024-11-28 03:07:14,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916122772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:14,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:14,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:14,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790559077] [2024-11-28 03:07:14,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:14,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:14,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:14,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:14,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:14,638 INFO L87 Difference]: Start difference. First operand 224 states and 345 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:14,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:14,720 INFO L93 Difference]: Finished difference Result 504 states and 777 transitions. [2024-11-28 03:07:14,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:14,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 299 [2024-11-28 03:07:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:14,724 INFO L225 Difference]: With dead ends: 504 [2024-11-28 03:07:14,724 INFO L226 Difference]: Without dead ends: 283 [2024-11-28 03:07:14,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:14,726 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 236 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:14,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 515 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:14,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-28 03:07:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 193. [2024-11-28 03:07:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 146 states have (on average 1.4315068493150684) internal successors, (209), 146 states have internal predecessors, (209), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 03:07:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2024-11-28 03:07:14,769 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 295 transitions. Word has length 299 [2024-11-28 03:07:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:14,770 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 295 transitions. [2024-11-28 03:07:14,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:07:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 295 transitions. [2024-11-28 03:07:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:07:14,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:14,776 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:14,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:07:14,777 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:14,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:14,777 INFO L85 PathProgramCache]: Analyzing trace with hash 852315372, now seen corresponding path program 1 times [2024-11-28 03:07:14,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:14,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396778976] [2024-11-28 03:07:14,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:07:28,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:28,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396778976] [2024-11-28 03:07:28,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396778976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:28,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:28,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:07:28,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854206548] [2024-11-28 03:07:28,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:28,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:07:28,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:28,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:07:28,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:28,153 INFO L87 Difference]: Start difference. First operand 193 states and 295 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:07:32,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:32,530 INFO L93 Difference]: Finished difference Result 1011 states and 1522 transitions. [2024-11-28 03:07:32,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:07:32,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 299 [2024-11-28 03:07:32,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:32,536 INFO L225 Difference]: With dead ends: 1011 [2024-11-28 03:07:32,537 INFO L226 Difference]: Without dead ends: 806 [2024-11-28 03:07:32,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:07:32,539 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 2049 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:32,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 1686 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:07:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-28 03:07:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 405. [2024-11-28 03:07:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.4150326797385622) internal successors, (433), 307 states have internal predecessors, (433), 89 states have call successors, (89), 9 states have call predecessors, (89), 9 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:07:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 611 transitions. [2024-11-28 03:07:32,609 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 611 transitions. Word has length 299 [2024-11-28 03:07:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:32,613 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 611 transitions. [2024-11-28 03:07:32,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:07:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 611 transitions. [2024-11-28 03:07:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:07:32,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:32,619 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:32,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:07:32,619 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:32,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2056448530, now seen corresponding path program 1 times [2024-11-28 03:07:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:32,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722461578] [2024-11-28 03:07:32,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:07:56,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:56,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722461578] [2024-11-28 03:07:56,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722461578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:56,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:56,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:07:56,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690136690] [2024-11-28 03:07:56,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:56,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:07:56,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:56,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:07:56,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:56,295 INFO L87 Difference]: Start difference. First operand 405 states and 611 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:07:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:59,883 INFO L93 Difference]: Finished difference Result 990 states and 1493 transitions. [2024-11-28 03:07:59,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:07:59,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 299 [2024-11-28 03:07:59,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:59,891 INFO L225 Difference]: With dead ends: 990 [2024-11-28 03:07:59,891 INFO L226 Difference]: Without dead ends: 725 [2024-11-28 03:07:59,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:07:59,893 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 1586 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:59,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1311 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:07:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-28 03:07:59,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 399. [2024-11-28 03:07:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 300 states have (on average 1.4133333333333333) internal successors, (424), 301 states have internal predecessors, (424), 89 states have call successors, (89), 9 states have call predecessors, (89), 9 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:07:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 602 transitions. [2024-11-28 03:07:59,963 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 602 transitions. Word has length 299 [2024-11-28 03:07:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:59,964 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 602 transitions. [2024-11-28 03:07:59,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:07:59,964 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 602 transitions. [2024-11-28 03:07:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:07:59,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:59,970 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:59,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:07:59,970 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:59,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1391667926, now seen corresponding path program 1 times [2024-11-28 03:07:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:59,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168545314] [2024-11-28 03:07:59,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:08:33,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:33,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168545314] [2024-11-28 03:08:33,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168545314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:33,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:33,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:08:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693754409] [2024-11-28 03:08:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:33,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:08:33,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:33,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:08:33,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:08:33,126 INFO L87 Difference]: Start difference. First operand 399 states and 602 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:08:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:37,391 INFO L93 Difference]: Finished difference Result 1137 states and 1730 transitions. [2024-11-28 03:08:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:08:37,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 299 [2024-11-28 03:08:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:37,396 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 03:08:37,397 INFO L226 Difference]: Without dead ends: 941 [2024-11-28 03:08:37,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:08:37,398 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 2015 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:37,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 1589 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:08:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-28 03:08:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 454. [2024-11-28 03:08:37,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 355 states have (on average 1.43943661971831) internal successors, (511), 356 states have internal predecessors, (511), 89 states have call successors, (89), 9 states have call predecessors, (89), 9 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:08:37,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 689 transitions. [2024-11-28 03:08:37,455 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 689 transitions. Word has length 299 [2024-11-28 03:08:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:37,456 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 689 transitions. [2024-11-28 03:08:37,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:08:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 689 transitions. [2024-11-28 03:08:37,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:08:37,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:37,459 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:37,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:08:37,459 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:37,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:37,460 INFO L85 PathProgramCache]: Analyzing trace with hash -5464532, now seen corresponding path program 1 times [2024-11-28 03:08:37,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:37,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709495156] [2024-11-28 03:08:37,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:37,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:09:07,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:07,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709495156] [2024-11-28 03:09:07,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709495156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:07,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:07,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:09:07,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303291863] [2024-11-28 03:09:07,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:07,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:09:07,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:07,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:09:07,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:09:07,225 INFO L87 Difference]: Start difference. First operand 454 states and 689 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:09:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:13,242 INFO L93 Difference]: Finished difference Result 1288 states and 1962 transitions. [2024-11-28 03:09:13,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:09:13,243 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 299 [2024-11-28 03:09:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:13,248 INFO L225 Difference]: With dead ends: 1288 [2024-11-28 03:09:13,249 INFO L226 Difference]: Without dead ends: 1092 [2024-11-28 03:09:13,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:09:13,251 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 2283 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:13,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 1480 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 03:09:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-28 03:09:13,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 498. [2024-11-28 03:09:13,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 399 states have (on average 1.4586466165413534) internal successors, (582), 400 states have internal predecessors, (582), 89 states have call successors, (89), 9 states have call predecessors, (89), 9 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:09:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 760 transitions. [2024-11-28 03:09:13,323 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 760 transitions. Word has length 299 [2024-11-28 03:09:13,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:13,324 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 760 transitions. [2024-11-28 03:09:13,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:09:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 760 transitions. [2024-11-28 03:09:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:09:13,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:13,327 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:13,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:09:13,327 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:13,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:13,328 INFO L85 PathProgramCache]: Analyzing trace with hash 836796654, now seen corresponding path program 1 times [2024-11-28 03:09:13,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:13,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598941458] [2024-11-28 03:09:13,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:13,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:09:19,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:19,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598941458] [2024-11-28 03:09:19,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598941458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:19,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:19,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:09:19,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243252858] [2024-11-28 03:09:19,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:19,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:09:19,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:19,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:09:19,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:09:19,048 INFO L87 Difference]: Start difference. First operand 498 states and 760 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:09:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:21,871 INFO L93 Difference]: Finished difference Result 1176 states and 1786 transitions. [2024-11-28 03:09:21,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:09:21,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 299 [2024-11-28 03:09:21,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:21,876 INFO L225 Difference]: With dead ends: 1176 [2024-11-28 03:09:21,876 INFO L226 Difference]: Without dead ends: 971 [2024-11-28 03:09:21,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:09:21,878 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 789 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:21,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1441 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:09:21,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-11-28 03:09:21,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 528. [2024-11-28 03:09:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 429 states have (on average 1.4662004662004662) internal successors, (629), 430 states have internal predecessors, (629), 89 states have call successors, (89), 9 states have call predecessors, (89), 9 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:09:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 807 transitions. [2024-11-28 03:09:21,935 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 807 transitions. Word has length 299 [2024-11-28 03:09:21,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:21,936 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 807 transitions. [2024-11-28 03:09:21,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:09:21,936 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 807 transitions. [2024-11-28 03:09:21,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:09:21,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:21,939 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:21,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:09:21,939 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:21,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2071967248, now seen corresponding path program 1 times [2024-11-28 03:09:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:21,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756612584] [2024-11-28 03:09:21,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:09:59,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:59,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756612584] [2024-11-28 03:09:59,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756612584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:59,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:59,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:09:59,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861556039] [2024-11-28 03:09:59,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:59,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:09:59,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:59,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:09:59,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:09:59,276 INFO L87 Difference]: Start difference. First operand 528 states and 807 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:10:01,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:01,387 INFO L93 Difference]: Finished difference Result 1034 states and 1570 transitions. [2024-11-28 03:10:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:10:01,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 299 [2024-11-28 03:10:01,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:01,392 INFO L225 Difference]: With dead ends: 1034 [2024-11-28 03:10:01,392 INFO L226 Difference]: Without dead ends: 829 [2024-11-28 03:10:01,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:10:01,394 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 634 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:01,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1249 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:10:01,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-28 03:10:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 528. [2024-11-28 03:10:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 429 states have (on average 1.4662004662004662) internal successors, (629), 430 states have internal predecessors, (629), 89 states have call successors, (89), 9 states have call predecessors, (89), 9 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:10:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 807 transitions. [2024-11-28 03:10:01,451 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 807 transitions. Word has length 299 [2024-11-28 03:10:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:01,451 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 807 transitions. [2024-11-28 03:10:01,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:10:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 807 transitions. [2024-11-28 03:10:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:10:01,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:01,454 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:01,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:10:01,455 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:01,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:01,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1543804562, now seen corresponding path program 1 times [2024-11-28 03:10:01,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:01,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380295963] [2024-11-28 03:10:01,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:10:03,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:03,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380295963] [2024-11-28 03:10:03,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380295963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:03,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:03,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:10:03,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591876440] [2024-11-28 03:10:03,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:03,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:10:03,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:03,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:10:03,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:10:03,423 INFO L87 Difference]: Start difference. First operand 528 states and 807 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:10:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:06,012 INFO L93 Difference]: Finished difference Result 1096 states and 1653 transitions. [2024-11-28 03:10:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:10:06,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 299 [2024-11-28 03:10:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:06,017 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 03:10:06,017 INFO L226 Difference]: Without dead ends: 889 [2024-11-28 03:10:06,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:10:06,019 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 1665 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:06,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 2007 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:10:06,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-28 03:10:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 662. [2024-11-28 03:10:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 547 states have (on average 1.4606946983546618) internal successors, (799), 549 states have internal predecessors, (799), 102 states have call successors, (102), 12 states have call predecessors, (102), 12 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:10:06,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1003 transitions. [2024-11-28 03:10:06,101 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1003 transitions. Word has length 299 [2024-11-28 03:10:06,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:06,102 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1003 transitions. [2024-11-28 03:10:06,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:10:06,103 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1003 transitions. [2024-11-28 03:10:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:10:06,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:06,106 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:06,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:10:06,106 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:06,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:06,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1559323280, now seen corresponding path program 1 times [2024-11-28 03:10:06,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:06,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636920892] [2024-11-28 03:10:06,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:06,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:10:45,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:45,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636920892] [2024-11-28 03:10:45,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636920892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:45,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:45,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:10:45,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135371329] [2024-11-28 03:10:45,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:45,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:10:45,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:45,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:10:45,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:10:45,527 INFO L87 Difference]: Start difference. First operand 662 states and 1003 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:10:49,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:49,168 INFO L93 Difference]: Finished difference Result 1436 states and 2160 transitions. [2024-11-28 03:10:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:10:49,170 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 299 [2024-11-28 03:10:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:49,174 INFO L225 Difference]: With dead ends: 1436 [2024-11-28 03:10:49,175 INFO L226 Difference]: Without dead ends: 1138 [2024-11-28 03:10:49,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:10:49,177 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 1024 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:49,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 1776 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:10:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-28 03:10:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 611. [2024-11-28 03:10:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 496 states have (on average 1.4455645161290323) internal successors, (717), 498 states have internal predecessors, (717), 102 states have call successors, (102), 12 states have call predecessors, (102), 12 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:10:49,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 921 transitions. [2024-11-28 03:10:49,251 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 921 transitions. Word has length 299 [2024-11-28 03:10:49,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:49,252 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 921 transitions. [2024-11-28 03:10:49,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:10:49,252 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 921 transitions. [2024-11-28 03:10:49,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:10:49,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:49,255 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:49,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:10:49,255 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:49,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:49,256 INFO L85 PathProgramCache]: Analyzing trace with hash -963285970, now seen corresponding path program 1 times [2024-11-28 03:10:49,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:49,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603038803] [2024-11-28 03:10:49,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:49,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:10:51,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:51,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603038803] [2024-11-28 03:10:51,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603038803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:51,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:51,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:10:51,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650164420] [2024-11-28 03:10:51,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:51,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:10:51,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:51,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:10:51,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:10:51,560 INFO L87 Difference]: Start difference. First operand 611 states and 921 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:10:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:55,748 INFO L93 Difference]: Finished difference Result 1627 states and 2407 transitions. [2024-11-28 03:10:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:10:55,749 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 299 [2024-11-28 03:10:55,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:55,755 INFO L225 Difference]: With dead ends: 1627 [2024-11-28 03:10:55,755 INFO L226 Difference]: Without dead ends: 1329 [2024-11-28 03:10:55,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:10:55,759 INFO L435 NwaCegarLoop]: 401 mSDtfsCounter, 1835 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:55,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 2398 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:10:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-28 03:10:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 865. [2024-11-28 03:10:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 731 states have (on average 1.456908344733242) internal successors, (1065), 735 states have internal predecessors, (1065), 118 states have call successors, (118), 15 states have call predecessors, (118), 15 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:10:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1301 transitions. [2024-11-28 03:10:55,913 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1301 transitions. Word has length 299 [2024-11-28 03:10:55,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:55,913 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1301 transitions. [2024-11-28 03:10:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:10:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1301 transitions. [2024-11-28 03:10:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 03:10:55,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:55,917 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:55,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:10:55,917 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:55,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash 422917424, now seen corresponding path program 1 times [2024-11-28 03:10:55,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:55,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802048084] [2024-11-28 03:10:55,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:55,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:10:57,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:57,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802048084] [2024-11-28 03:10:57,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802048084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:57,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:57,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:10:57,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541765209] [2024-11-28 03:10:57,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:57,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:10:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:57,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:10:57,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:10:57,709 INFO L87 Difference]: Start difference. First operand 865 states and 1301 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:10:59,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:59,872 INFO L93 Difference]: Finished difference Result 1402 states and 2091 transitions. [2024-11-28 03:10:59,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:10:59,872 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 299 [2024-11-28 03:10:59,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:59,877 INFO L225 Difference]: With dead ends: 1402 [2024-11-28 03:10:59,877 INFO L226 Difference]: Without dead ends: 1040 [2024-11-28 03:10:59,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:10:59,879 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 1003 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:59,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1889 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:10:59,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-11-28 03:11:00,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 829. [2024-11-28 03:11:00,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 695 states have (on average 1.4532374100719425) internal successors, (1010), 699 states have internal predecessors, (1010), 118 states have call successors, (118), 15 states have call predecessors, (118), 15 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:11:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1246 transitions. [2024-11-28 03:11:00,012 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1246 transitions. Word has length 299 [2024-11-28 03:11:00,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:00,013 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1246 transitions. [2024-11-28 03:11:00,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:11:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1246 transitions. [2024-11-28 03:11:00,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 03:11:00,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:00,016 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:00,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:11:00,016 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:00,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1449433293, now seen corresponding path program 1 times [2024-11-28 03:11:00,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:00,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216878502] [2024-11-28 03:11:00,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:00,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:11:59,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:59,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216878502] [2024-11-28 03:11:59,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216878502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:59,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:59,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:11:59,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397302545] [2024-11-28 03:11:59,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:59,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:11:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:59,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:11:59,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:11:59,289 INFO L87 Difference]: Start difference. First operand 829 states and 1246 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:12:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:03,590 INFO L93 Difference]: Finished difference Result 1232 states and 1849 transitions. [2024-11-28 03:12:03,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:12:03,591 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 300 [2024-11-28 03:12:03,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:03,595 INFO L225 Difference]: With dead ends: 1232 [2024-11-28 03:12:03,595 INFO L226 Difference]: Without dead ends: 984 [2024-11-28 03:12:03,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:12:03,596 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1378 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:03,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1899 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:12:03,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-28 03:12:03,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 809. [2024-11-28 03:12:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 675 states have (on average 1.4474074074074075) internal successors, (977), 679 states have internal predecessors, (977), 118 states have call successors, (118), 15 states have call predecessors, (118), 15 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:12:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1213 transitions. [2024-11-28 03:12:03,713 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1213 transitions. Word has length 300 [2024-11-28 03:12:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:03,714 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1213 transitions. [2024-11-28 03:12:03,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:12:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1213 transitions. [2024-11-28 03:12:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 03:12:03,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:03,717 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:03,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:12:03,717 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:03,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash -573414287, now seen corresponding path program 1 times [2024-11-28 03:12:03,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:03,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472616066] [2024-11-28 03:12:03,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:12:05,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472616066] [2024-11-28 03:12:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472616066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:05,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:05,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:12:05,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524595109] [2024-11-28 03:12:05,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:05,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:12:05,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:05,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:12:05,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:12:05,597 INFO L87 Difference]: Start difference. First operand 809 states and 1213 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:12:08,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:08,188 INFO L93 Difference]: Finished difference Result 1416 states and 2118 transitions. [2024-11-28 03:12:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:12:08,189 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 300 [2024-11-28 03:12:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:08,194 INFO L225 Difference]: With dead ends: 1416 [2024-11-28 03:12:08,195 INFO L226 Difference]: Without dead ends: 1104 [2024-11-28 03:12:08,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:12:08,197 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 1364 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:08,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 1781 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:12:08,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-11-28 03:12:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 825. [2024-11-28 03:12:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 691 states have (on average 1.4442836468885674) internal successors, (998), 695 states have internal predecessors, (998), 118 states have call successors, (118), 15 states have call predecessors, (118), 15 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:12:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1234 transitions. [2024-11-28 03:12:08,336 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1234 transitions. Word has length 300 [2024-11-28 03:12:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:08,337 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1234 transitions. [2024-11-28 03:12:08,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-28 03:12:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1234 transitions. [2024-11-28 03:12:08,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 03:12:08,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:08,341 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:08,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:12:08,342 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:08,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash -550782033, now seen corresponding path program 1 times [2024-11-28 03:12:08,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:08,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376579618] [2024-11-28 03:12:08,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:08,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:12:10,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:10,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376579618] [2024-11-28 03:12:10,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376579618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:10,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:10,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:12:10,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845359341] [2024-11-28 03:12:10,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:10,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:12:10,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:10,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:12:10,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:12:10,137 INFO L87 Difference]: Start difference. First operand 825 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:12:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:12,419 INFO L93 Difference]: Finished difference Result 1223 states and 1827 transitions. [2024-11-28 03:12:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:12:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 300 [2024-11-28 03:12:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:12,423 INFO L225 Difference]: With dead ends: 1223 [2024-11-28 03:12:12,423 INFO L226 Difference]: Without dead ends: 911 [2024-11-28 03:12:12,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:12:12,425 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 725 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:12,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 2061 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:12:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2024-11-28 03:12:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 765. [2024-11-28 03:12:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 631 states have (on average 1.4358161648177497) internal successors, (906), 635 states have internal predecessors, (906), 118 states have call successors, (118), 15 states have call predecessors, (118), 15 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 03:12:12,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1142 transitions. [2024-11-28 03:12:12,548 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1142 transitions. Word has length 300 [2024-11-28 03:12:12,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:12,549 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1142 transitions. [2024-11-28 03:12:12,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:12:12,549 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1142 transitions. [2024-11-28 03:12:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 03:12:12,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:12,552 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:12,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:12:12,552 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:12,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash -812689443, now seen corresponding path program 1 times [2024-11-28 03:12:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:12,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693350618] [2024-11-28 03:12:12,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:12,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:12:12,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:12,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693350618] [2024-11-28 03:12:12,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693350618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:12,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:12,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:12:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372527906] [2024-11-28 03:12:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:12,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:12:12,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:12,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:12:12,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:12:12,689 INFO L87 Difference]: Start difference. First operand 765 states and 1142 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:12:12,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:12,959 INFO L93 Difference]: Finished difference Result 2034 states and 3019 transitions. [2024-11-28 03:12:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:12:12,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 300 [2024-11-28 03:12:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:12,966 INFO L225 Difference]: With dead ends: 2034 [2024-11-28 03:12:12,967 INFO L226 Difference]: Without dead ends: 1391 [2024-11-28 03:12:12,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:12:12,994 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 187 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:12,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 616 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:12:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2024-11-28 03:12:13,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1388. [2024-11-28 03:12:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1187 states have (on average 1.429654591406908) internal successors, (1697), 1196 states have internal predecessors, (1697), 173 states have call successors, (173), 27 states have call predecessors, (173), 27 states have return successors, (173), 164 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-28 03:12:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 2043 transitions. [2024-11-28 03:12:13,167 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 2043 transitions. Word has length 300 [2024-11-28 03:12:13,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:13,168 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 2043 transitions. [2024-11-28 03:12:13,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:12:13,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 2043 transitions. [2024-11-28 03:12:13,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 03:12:13,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:13,172 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:13,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:12:13,172 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:13,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:13,173 INFO L85 PathProgramCache]: Analyzing trace with hash 574095967, now seen corresponding path program 1 times [2024-11-28 03:12:13,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:13,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902355193] [2024-11-28 03:12:13,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:13,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:12:17,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902355193] [2024-11-28 03:12:17,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902355193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:17,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:17,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:12:17,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392956639] [2024-11-28 03:12:17,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:17,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:12:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:17,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:12:17,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:12:17,963 INFO L87 Difference]: Start difference. First operand 1388 states and 2043 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:12:19,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:19,206 INFO L93 Difference]: Finished difference Result 2283 states and 3410 transitions. [2024-11-28 03:12:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:12:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 300 [2024-11-28 03:12:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:19,217 INFO L225 Difference]: With dead ends: 2283 [2024-11-28 03:12:19,217 INFO L226 Difference]: Without dead ends: 1946 [2024-11-28 03:12:19,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:12:19,220 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 741 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:19,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1202 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:12:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2024-11-28 03:12:19,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1470. [2024-11-28 03:12:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1269 states have (on average 1.4365642237982663) internal successors, (1823), 1278 states have internal predecessors, (1823), 173 states have call successors, (173), 27 states have call predecessors, (173), 27 states have return successors, (173), 164 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-28 03:12:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2169 transitions. [2024-11-28 03:12:19,443 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2169 transitions. Word has length 300 [2024-11-28 03:12:19,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:19,444 INFO L471 AbstractCegarLoop]: Abstraction has 1470 states and 2169 transitions. [2024-11-28 03:12:19,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-28 03:12:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2169 transitions. [2024-11-28 03:12:19,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 03:12:19,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:19,448 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:19,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:12:19,448 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:19,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1017996641, now seen corresponding path program 1 times [2024-11-28 03:12:19,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:19,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786525697] [2024-11-28 03:12:19,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:19,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:12:19,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:19,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786525697] [2024-11-28 03:12:19,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786525697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:19,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:19,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:12:19,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633692567] [2024-11-28 03:12:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:19,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:12:19,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:19,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:12:19,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:12:19,960 INFO L87 Difference]: Start difference. First operand 1470 states and 2169 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:12:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:21,110 INFO L93 Difference]: Finished difference Result 2241 states and 3336 transitions. [2024-11-28 03:12:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:12:21,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 300 [2024-11-28 03:12:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:21,119 INFO L225 Difference]: With dead ends: 2241 [2024-11-28 03:12:21,120 INFO L226 Difference]: Without dead ends: 1904 [2024-11-28 03:12:21,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:12:21,124 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 432 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:21,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1958 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:12:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-11-28 03:12:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1512. [2024-11-28 03:12:21,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1311 states have (on average 1.4416475972540046) internal successors, (1890), 1320 states have internal predecessors, (1890), 173 states have call successors, (173), 27 states have call predecessors, (173), 27 states have return successors, (173), 164 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-28 03:12:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2236 transitions. [2024-11-28 03:12:21,358 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2236 transitions. Word has length 300 [2024-11-28 03:12:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:21,359 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2236 transitions. [2024-11-28 03:12:21,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:12:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2236 transitions. [2024-11-28 03:12:21,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-28 03:12:21,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:21,362 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:21,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:12:21,363 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:21,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2143456502, now seen corresponding path program 1 times [2024-11-28 03:12:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:21,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225788747] [2024-11-28 03:12:21,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:21,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:12:24,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225788747] [2024-11-28 03:12:24,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225788747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:24,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:24,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:12:24,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284688888] [2024-11-28 03:12:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:24,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:12:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:24,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:12:24,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:12:24,129 INFO L87 Difference]: Start difference. First operand 1512 states and 2236 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:12:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:25,908 INFO L93 Difference]: Finished difference Result 2625 states and 3875 transitions. [2024-11-28 03:12:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:12:25,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 301 [2024-11-28 03:12:25,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:25,913 INFO L225 Difference]: With dead ends: 2625 [2024-11-28 03:12:25,913 INFO L226 Difference]: Without dead ends: 2124 [2024-11-28 03:12:25,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:12:25,915 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 643 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:25,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1185 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:12:25,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2024-11-28 03:12:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1488. [2024-11-28 03:12:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1287 states have (on average 1.4413364413364413) internal successors, (1855), 1296 states have internal predecessors, (1855), 173 states have call successors, (173), 27 states have call predecessors, (173), 27 states have return successors, (173), 164 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-28 03:12:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2201 transitions. [2024-11-28 03:12:26,068 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2201 transitions. Word has length 301 [2024-11-28 03:12:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:26,068 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 2201 transitions. [2024-11-28 03:12:26,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:12:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2201 transitions. [2024-11-28 03:12:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-28 03:12:26,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:26,072 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:26,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:12:26,072 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:26,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash -588699630, now seen corresponding path program 1 times [2024-11-28 03:12:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:26,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869902724] [2024-11-28 03:12:26,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 105 proven. 21 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-28 03:12:44,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:44,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869902724] [2024-11-28 03:12:44,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869902724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:44,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265875258] [2024-11-28 03:12:44,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:44,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:12:44,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:12:44,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:12:44,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:12:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:44,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:12:44,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2516 proven. 228 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-11-28 03:12:46,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:12:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 132 proven. 237 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2024-11-28 03:12:47,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265875258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:12:47,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:12:47,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 32 [2024-11-28 03:12:47,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761847849] [2024-11-28 03:12:47,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:12:47,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 03:12:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:47,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 03:12:47,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:12:47,483 INFO L87 Difference]: Start difference. First operand 1488 states and 2201 transitions. Second operand has 32 states, 31 states have (on average 6.870967741935484) internal successors, (213), 32 states have internal predecessors, (213), 10 states have call successors, (123), 4 states have call predecessors, (123), 10 states have return successors, (124), 9 states have call predecessors, (124), 10 states have call successors, (124) [2024-11-28 03:13:02,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:02,507 INFO L93 Difference]: Finished difference Result 8527 states and 12369 transitions. [2024-11-28 03:13:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-28 03:13:02,508 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.870967741935484) internal successors, (213), 32 states have internal predecessors, (213), 10 states have call successors, (123), 4 states have call predecessors, (123), 10 states have return successors, (124), 9 states have call predecessors, (124), 10 states have call successors, (124) Word has length 301 [2024-11-28 03:13:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:02,530 INFO L225 Difference]: With dead ends: 8527 [2024-11-28 03:13:02,530 INFO L226 Difference]: Without dead ends: 7322 [2024-11-28 03:13:02,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3855 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2852, Invalid=9580, Unknown=0, NotChecked=0, Total=12432 [2024-11-28 03:13:02,535 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 5208 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 4480 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 5136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 4480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:02,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 4544 Invalid, 5136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [656 Valid, 4480 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-28 03:13:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2024-11-28 03:13:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 2664. [2024-11-28 03:13:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2377 states have (on average 1.4669751787968026) internal successors, (3487), 2385 states have internal predecessors, (3487), 233 states have call successors, (233), 53 states have call predecessors, (233), 53 states have return successors, (233), 225 states have call predecessors, (233), 233 states have call successors, (233) [2024-11-28 03:13:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3953 transitions. [2024-11-28 03:13:02,787 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3953 transitions. Word has length 301 [2024-11-28 03:13:02,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:02,787 INFO L471 AbstractCegarLoop]: Abstraction has 2664 states and 3953 transitions. [2024-11-28 03:13:02,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.870967741935484) internal successors, (213), 32 states have internal predecessors, (213), 10 states have call successors, (123), 4 states have call predecessors, (123), 10 states have return successors, (124), 9 states have call predecessors, (124), 10 states have call successors, (124) [2024-11-28 03:13:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3953 transitions. [2024-11-28 03:13:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-28 03:13:02,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:02,790 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:02,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:13:02,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 03:13:02,991 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:02,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:02,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1785793514, now seen corresponding path program 1 times [2024-11-28 03:13:02,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:02,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692274303] [2024-11-28 03:13:02,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:02,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:04,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 120 proven. 126 refuted. 0 times theorem prover too weak. 3366 trivial. 0 not checked. [2024-11-28 03:13:04,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:04,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692274303] [2024-11-28 03:13:04,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692274303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:04,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018497443] [2024-11-28 03:13:04,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:04,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:04,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:04,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:04,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:13:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:04,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:13:04,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2419 proven. 126 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2024-11-28 03:13:05,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 120 proven. 129 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2024-11-28 03:13:05,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018497443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:05,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:05,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2024-11-28 03:13:05,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880307075] [2024-11-28 03:13:05,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:05,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:13:05,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:05,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:13:05,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:13:05,799 INFO L87 Difference]: Start difference. First operand 2664 states and 3953 transitions. Second operand has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 6 states have call successors, (101), 3 states have call predecessors, (101), 7 states have return successors, (102), 6 states have call predecessors, (102), 6 states have call successors, (102) [2024-11-28 03:13:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:06,599 INFO L93 Difference]: Finished difference Result 4743 states and 6933 transitions. [2024-11-28 03:13:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:13:06,600 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 6 states have call successors, (101), 3 states have call predecessors, (101), 7 states have return successors, (102), 6 states have call predecessors, (102), 6 states have call successors, (102) Word has length 301 [2024-11-28 03:13:06,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:06,613 INFO L225 Difference]: With dead ends: 4743 [2024-11-28 03:13:06,614 INFO L226 Difference]: Without dead ends: 2588 [2024-11-28 03:13:06,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:13:06,618 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 799 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:06,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 639 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:13:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2024-11-28 03:13:06,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 1931. [2024-11-28 03:13:06,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1700 states have (on average 1.4441176470588235) internal successors, (2455), 1704 states have internal predecessors, (2455), 181 states have call successors, (181), 49 states have call predecessors, (181), 49 states have return successors, (181), 177 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-28 03:13:06,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2817 transitions. [2024-11-28 03:13:06,854 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2817 transitions. Word has length 301 [2024-11-28 03:13:06,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:06,855 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2817 transitions. [2024-11-28 03:13:06,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.933333333333334) internal successors, (179), 15 states have internal predecessors, (179), 6 states have call successors, (101), 3 states have call predecessors, (101), 7 states have return successors, (102), 6 states have call predecessors, (102), 6 states have call successors, (102) [2024-11-28 03:13:06,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2817 transitions. [2024-11-28 03:13:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-28 03:13:06,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:06,857 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:06,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:13:07,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:13:07,058 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:07,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:07,058 INFO L85 PathProgramCache]: Analyzing trace with hash -65769006, now seen corresponding path program 1 times [2024-11-28 03:13:07,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:07,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811398282] [2024-11-28 03:13:07,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:07,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 105 proven. 21 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-28 03:13:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:08,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811398282] [2024-11-28 03:13:08,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811398282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:08,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876820817] [2024-11-28 03:13:08,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:08,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:08,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:08,652 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:08,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:13:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:08,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:13:08,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1101 proven. 36 refuted. 0 times theorem prover too weak. 2475 trivial. 0 not checked. [2024-11-28 03:13:09,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 210 proven. 39 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2024-11-28 03:13:10,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876820817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:10,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:10,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 27 [2024-11-28 03:13:10,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995963797] [2024-11-28 03:13:10,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:10,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 03:13:10,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:10,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 03:13:10,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:13:10,548 INFO L87 Difference]: Start difference. First operand 1931 states and 2817 transitions. Second operand has 27 states, 25 states have (on average 9.52) internal successors, (238), 25 states have internal predecessors, (238), 9 states have call successors, (129), 4 states have call predecessors, (129), 8 states have return successors, (129), 8 states have call predecessors, (129), 9 states have call successors, (129) [2024-11-28 03:13:16,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:16,717 INFO L93 Difference]: Finished difference Result 8268 states and 11671 transitions. [2024-11-28 03:13:16,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-28 03:13:16,718 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 9.52) internal successors, (238), 25 states have internal predecessors, (238), 9 states have call successors, (129), 4 states have call predecessors, (129), 8 states have return successors, (129), 8 states have call predecessors, (129), 9 states have call successors, (129) Word has length 301 [2024-11-28 03:13:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:16,736 INFO L225 Difference]: With dead ends: 8268 [2024-11-28 03:13:16,737 INFO L226 Difference]: Without dead ends: 6943 [2024-11-28 03:13:16,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2316 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1508, Invalid=5298, Unknown=0, NotChecked=0, Total=6806 [2024-11-28 03:13:16,741 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 2198 mSDsluCounter, 3681 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 1393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 4203 SdHoareTripleChecker+Invalid, 3966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1393 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:16,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2234 Valid, 4203 Invalid, 3966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1393 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:13:16,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6943 states. [2024-11-28 03:13:17,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6943 to 5095. [2024-11-28 03:13:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 4419 states have (on average 1.4306404163837971) internal successors, (6322), 4435 states have internal predecessors, (6322), 527 states have call successors, (527), 148 states have call predecessors, (527), 148 states have return successors, (527), 511 states have call predecessors, (527), 527 states have call successors, (527) [2024-11-28 03:13:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 7376 transitions. [2024-11-28 03:13:17,400 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 7376 transitions. Word has length 301 [2024-11-28 03:13:17,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:17,401 INFO L471 AbstractCegarLoop]: Abstraction has 5095 states and 7376 transitions. [2024-11-28 03:13:17,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 9.52) internal successors, (238), 25 states have internal predecessors, (238), 9 states have call successors, (129), 4 states have call predecessors, (129), 8 states have return successors, (129), 8 states have call predecessors, (129), 9 states have call successors, (129) [2024-11-28 03:13:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 7376 transitions. [2024-11-28 03:13:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-28 03:13:17,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:17,405 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:17,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:13:17,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:13:17,607 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:17,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash 191668051, now seen corresponding path program 1 times [2024-11-28 03:13:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:17,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750583191] [2024-11-28 03:13:17,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:17,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 03:13:19,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:19,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750583191] [2024-11-28 03:13:19,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750583191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:19,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:19,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:13:19,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40799086] [2024-11-28 03:13:19,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:19,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:19,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:19,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:19,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:19,262 INFO L87 Difference]: Start difference. First operand 5095 states and 7376 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:13:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:20,875 INFO L93 Difference]: Finished difference Result 12907 states and 18687 transitions. [2024-11-28 03:13:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:20,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 302 [2024-11-28 03:13:20,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:20,901 INFO L225 Difference]: With dead ends: 12907 [2024-11-28 03:13:20,902 INFO L226 Difference]: Without dead ends: 8465 [2024-11-28 03:13:20,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:20,911 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 295 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:20,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 827 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:13:20,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8465 states. [2024-11-28 03:13:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8465 to 6605. [2024-11-28 03:13:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 5987 states have (on average 1.4710205445131117) internal successors, (8807), 5997 states have internal predecessors, (8807), 473 states have call successors, (473), 144 states have call predecessors, (473), 144 states have return successors, (473), 463 states have call predecessors, (473), 473 states have call successors, (473) [2024-11-28 03:13:21,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 9753 transitions. [2024-11-28 03:13:21,724 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 9753 transitions. Word has length 302 [2024-11-28 03:13:21,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:21,725 INFO L471 AbstractCegarLoop]: Abstraction has 6605 states and 9753 transitions. [2024-11-28 03:13:21,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-28 03:13:21,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 9753 transitions. [2024-11-28 03:13:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-28 03:13:21,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:21,729 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:21,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:13:21,730 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:21,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash 466427665, now seen corresponding path program 1 times [2024-11-28 03:13:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004945716] [2024-11-28 03:13:21,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 69 proven. 57 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-28 03:13:22,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:22,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004945716] [2024-11-28 03:13:22,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004945716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:22,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849601443] [2024-11-28 03:13:22,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:22,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:22,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:22,914 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:22,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:13:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:23,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:13:23,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1836 proven. 57 refuted. 0 times theorem prover too weak. 1719 trivial. 0 not checked. [2024-11-28 03:13:23,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 69 proven. 57 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-28 03:13:23,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849601443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:23,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:23,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-28 03:13:23,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002642540] [2024-11-28 03:13:23,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:23,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:13:23,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:23,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:13:23,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:13:23,796 INFO L87 Difference]: Start difference. First operand 6605 states and 9753 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-28 03:13:24,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:24,630 INFO L93 Difference]: Finished difference Result 10921 states and 16030 transitions. [2024-11-28 03:13:24,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:13:24,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 302 [2024-11-28 03:13:24,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:24,646 INFO L225 Difference]: With dead ends: 10921 [2024-11-28 03:13:24,646 INFO L226 Difference]: Without dead ends: 4492 [2024-11-28 03:13:24,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 601 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:13:24,655 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 306 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:24,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 514 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:13:24,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4492 states. [2024-11-28 03:13:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4492 to 3771. [2024-11-28 03:13:25,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3771 states, 3386 states have (on average 1.4548139397519197) internal successors, (4926), 3388 states have internal predecessors, (4926), 285 states have call successors, (285), 99 states have call predecessors, (285), 99 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) [2024-11-28 03:13:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5496 transitions. [2024-11-28 03:13:25,247 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 5496 transitions. Word has length 302 [2024-11-28 03:13:25,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:25,247 INFO L471 AbstractCegarLoop]: Abstraction has 3771 states and 5496 transitions. [2024-11-28 03:13:25,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-28 03:13:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 5496 transitions. [2024-11-28 03:13:25,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-28 03:13:25,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:25,249 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:25,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:13:25,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 03:13:25,450 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:25,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1178626058, now seen corresponding path program 1 times [2024-11-28 03:13:25,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:25,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731538227] [2024-11-28 03:13:25,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:25,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 123 proven. 123 refuted. 0 times theorem prover too weak. 3366 trivial. 0 not checked. [2024-11-28 03:13:28,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:28,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731538227] [2024-11-28 03:13:28,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731538227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:28,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538031399] [2024-11-28 03:13:28,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:28,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:28,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:28,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:28,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:13:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:28,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 03:13:28,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2674 proven. 363 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-11-28 03:13:32,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:34,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538031399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:34,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:13:34,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 27] total 33 [2024-11-28 03:13:34,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185579873] [2024-11-28 03:13:34,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:34,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 03:13:34,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:34,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 03:13:34,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1396, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 03:13:34,776 INFO L87 Difference]: Start difference. First operand 3771 states and 5496 transitions. Second operand has 33 states, 32 states have (on average 5.09375) internal successors, (163), 31 states have internal predecessors, (163), 11 states have call successors, (80), 9 states have call predecessors, (80), 14 states have return successors, (80), 10 states have call predecessors, (80), 11 states have call successors, (80) [2024-11-28 03:13:48,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:48,490 INFO L93 Difference]: Finished difference Result 16969 states and 24844 transitions. [2024-11-28 03:13:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-28 03:13:48,491 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.09375) internal successors, (163), 31 states have internal predecessors, (163), 11 states have call successors, (80), 9 states have call predecessors, (80), 14 states have return successors, (80), 10 states have call predecessors, (80), 11 states have call successors, (80) Word has length 303 [2024-11-28 03:13:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:48,520 INFO L225 Difference]: With dead ends: 16969 [2024-11-28 03:13:48,520 INFO L226 Difference]: Without dead ends: 13393 [2024-11-28 03:13:48,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2021 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1644, Invalid=6188, Unknown=0, NotChecked=0, Total=7832 [2024-11-28 03:13:48,534 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 3841 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:48,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 1860 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 03:13:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13393 states. [2024-11-28 03:13:49,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13393 to 2062. [2024-11-28 03:13:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1741 states have (on average 1.376220562894888) internal successors, (2396), 1741 states have internal predecessors, (2396), 215 states have call successors, (215), 105 states have call predecessors, (215), 105 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2024-11-28 03:13:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2826 transitions. [2024-11-28 03:13:49,214 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2826 transitions. Word has length 303 [2024-11-28 03:13:49,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:49,214 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2826 transitions. [2024-11-28 03:13:49,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.09375) internal successors, (163), 31 states have internal predecessors, (163), 11 states have call successors, (80), 9 states have call predecessors, (80), 14 states have return successors, (80), 10 states have call predecessors, (80), 11 states have call successors, (80) [2024-11-28 03:13:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2826 transitions. [2024-11-28 03:13:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-28 03:13:49,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:49,217 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:49,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:13:49,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:13:49,421 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:49,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1336271090, now seen corresponding path program 1 times [2024-11-28 03:13:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:49,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726722993] [2024-11-28 03:13:49,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 186 proven. 174 refuted. 0 times theorem prover too weak. 3252 trivial. 0 not checked. [2024-11-28 03:20:21,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726722993] [2024-11-28 03:20:21,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726722993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259913847] [2024-11-28 03:20:21,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:21,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:21,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:21,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:21,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2c29f1-13cc-4f5b-908f-dbcda7982897/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:20:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:21,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:20:21,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1746 proven. 240 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2024-11-28 03:20:23,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 120 proven. 249 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2024-11-28 03:20:26,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259913847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:26,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:26,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 12, 12] total 52 [2024-11-28 03:20:26,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654773293] [2024-11-28 03:20:26,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:26,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-28 03:20:26,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:26,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 03:20:26,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=2382, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 03:20:26,319 INFO L87 Difference]: Start difference. First operand 2062 states and 2826 transitions. Second operand has 52 states, 50 states have (on average 4.76) internal successors, (238), 49 states have internal predecessors, (238), 15 states have call successors, (115), 4 states have call predecessors, (115), 9 states have return successors, (116), 15 states have call predecessors, (116), 15 states have call successors, (116)