./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.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_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/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_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/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_8d43c122-85cd-4a3c-8d24-8461e73003cb/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 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:51:51,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:51:51,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:51:51,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:51:51,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:51:51,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:51:51,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:51:51,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:51:51,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:51:51,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:51:51,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:51:51,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:51:51,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:51:51,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:51:51,957 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:51:51,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:51:51,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:51:51,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:51:51,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:51:51,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:51:51,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:51:51,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:51:51,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:51:51,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:51:51,959 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:51:51,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:51:51,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:51:51,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:51:51,959 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:51:51,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:51:51,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:51:51,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:51:51,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:51,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:51:51,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:51:51,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:51:51,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:51:51,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:51,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:51:51,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:51:51,962 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:51:51,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:51:51,962 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:51:51,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:51:51,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:51:51,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:51:51,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:51:51,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:51:51,963 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/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 -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2024-11-28 02:51:52,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:51:52,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:51:52,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:51:52,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:51:52,363 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:51:52,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-11-28 02:51:56,110 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/data/849a7c5b6/919326b6ab12403a816fb043fdb782f4/FLAGc4bbbec62 [2024-11-28 02:51:56,624 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:51:56,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-11-28 02:51:56,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/data/849a7c5b6/919326b6ab12403a816fb043fdb782f4/FLAGc4bbbec62 [2024-11-28 02:51:56,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/data/849a7c5b6/919326b6ab12403a816fb043fdb782f4 [2024-11-28 02:51:56,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:51:56,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:51:56,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:51:56,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:51:56,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:51:56,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:56" (1/1) ... [2024-11-28 02:51:56,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7666d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:56, skipping insertion in model container [2024-11-28 02:51:56,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:56" (1/1) ... [2024-11-28 02:51:56,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:51:57,683 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2024-11-28 02:51:57,701 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2024-11-28 02:51:57,877 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2024-11-28 02:51:57,878 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2024-11-28 02:51:57,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:51:57,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:51:57,991 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2024-11-28 02:51:57,994 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2024-11-28 02:51:58,100 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2024-11-28 02:51:58,101 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_8d43c122-85cd-4a3c-8d24-8461e73003cb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2024-11-28 02:51:58,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:51:58,192 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:51:58,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58 WrapperNode [2024-11-28 02:51:58,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:51:58,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:51:58,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:51:58,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:51:58,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,357 INFO L138 Inliner]: procedures = 282, calls = 296, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1442 [2024-11-28 02:51:58,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:51:58,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:51:58,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:51:58,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:51:58,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,514 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 49, 4]. [2024-11-28 02:51:58,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,589 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:51:58,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:51:58,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:51:58,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:51:58,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (1/1) ... [2024-11-28 02:51:58,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:58,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:51:58,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:51:58,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d43c122-85cd-4a3c-8d24-8461e73003cb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:51:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:51:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:51:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:51:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:51:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:51:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:51:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-28 02:51:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-28 02:51:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:51:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:51:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:51:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:51:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:51:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:51:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:51:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:51:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:51:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:51:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:51:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-28 02:51:58,815 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-28 02:51:58,815 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:51:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:51:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:51:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:51:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:51:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:51:59,155 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:51:59,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:52:01,877 INFO L? ?]: Removed 335 outVars from TransFormulas that were not future-live. [2024-11-28 02:52:01,877 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:52:01,905 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:52:01,905 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 02:52:01,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:01 BoogieIcfgContainer [2024-11-28 02:52:01,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:52:01,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:52:01,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:52:01,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:52:01,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:51:56" (1/3) ... [2024-11-28 02:52:01,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c44fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:01, skipping insertion in model container [2024-11-28 02:52:01,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:58" (2/3) ... [2024-11-28 02:52:01,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c44fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:01, skipping insertion in model container [2024-11-28 02:52:01,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:01" (3/3) ... [2024-11-28 02:52:01,921 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2024-11-28 02:52:01,943 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:52:01,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test6-1.i that has 5 procedures, 440 locations, 1 initial locations, 36 loop locations, and 4 error locations. [2024-11-28 02:52:02,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:52:02,051 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;@737df159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:52:02,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 02:52:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 440 states, 418 states have (on average 1.5909090909090908) internal successors, (665), 422 states have internal predecessors, (665), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 02:52:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:52:02,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:02,068 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:02,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:02,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:02,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1938186709, now seen corresponding path program 1 times [2024-11-28 02:52:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:02,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420472702] [2024-11-28 02:52:02,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:02,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:02,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:02,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420472702] [2024-11-28 02:52:02,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420472702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:02,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:02,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:52:02,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155914175] [2024-11-28 02:52:02,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:02,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:52:02,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:02,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:52:02,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:52:02,439 INFO L87 Difference]: Start difference. First operand has 440 states, 418 states have (on average 1.5909090909090908) internal successors, (665), 422 states have internal predecessors, (665), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:02,565 INFO L93 Difference]: Finished difference Result 876 states and 1391 transitions. [2024-11-28 02:52:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:52:02,568 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 02:52:02,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:02,582 INFO L225 Difference]: With dead ends: 876 [2024-11-28 02:52:02,582 INFO L226 Difference]: Without dead ends: 434 [2024-11-28 02:52:02,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:52:02,598 INFO L435 NwaCegarLoop]: 619 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, 619 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 02:52:02,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:02,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-28 02:52:02,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2024-11-28 02:52:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 413 states have (on average 1.4285714285714286) internal successors, (590), 418 states have internal predecessors, (590), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2024-11-28 02:52:02,703 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 8 [2024-11-28 02:52:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:02,704 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2024-11-28 02:52:02,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2024-11-28 02:52:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:52:02,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:02,705 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:02,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:52:02,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:02,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1937955008, now seen corresponding path program 1 times [2024-11-28 02:52:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:02,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026286583] [2024-11-28 02:52:02,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:03,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:03,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026286583] [2024-11-28 02:52:03,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026286583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:03,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:03,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:52:03,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519292601] [2024-11-28 02:52:03,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:03,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:52:03,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:03,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:52:03,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:52:03,106 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:03,465 INFO L93 Difference]: Finished difference Result 1055 states and 1506 transitions. [2024-11-28 02:52:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:52:03,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:52:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:03,475 INFO L225 Difference]: With dead ends: 1055 [2024-11-28 02:52:03,476 INFO L226 Difference]: Without dead ends: 841 [2024-11-28 02:52:03,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:52:03,479 INFO L435 NwaCegarLoop]: 640 mSDtfsCounter, 563 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:03,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1863 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:52:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-28 02:52:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 436. [2024-11-28 02:52:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 415 states have (on average 1.4265060240963856) internal successors, (592), 420 states have internal predecessors, (592), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:03,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 617 transitions. [2024-11-28 02:52:03,535 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 617 transitions. Word has length 10 [2024-11-28 02:52:03,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:03,536 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 617 transitions. [2024-11-28 02:52:03,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 617 transitions. [2024-11-28 02:52:03,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 02:52:03,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:03,540 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:03,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:52:03,541 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:03,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:03,542 INFO L85 PathProgramCache]: Analyzing trace with hash -128835798, now seen corresponding path program 1 times [2024-11-28 02:52:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:03,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319898228] [2024-11-28 02:52:03,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:04,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:04,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319898228] [2024-11-28 02:52:04,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319898228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:04,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:04,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:52:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692282020] [2024-11-28 02:52:04,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:04,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:52:04,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:04,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:52:04,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:52:04,209 INFO L87 Difference]: Start difference. First operand 436 states and 617 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:04,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:04,398 INFO L93 Difference]: Finished difference Result 825 states and 1163 transitions. [2024-11-28 02:52:04,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:52:04,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 02:52:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:04,406 INFO L225 Difference]: With dead ends: 825 [2024-11-28 02:52:04,406 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 02:52:04,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:52:04,409 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 30 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:04,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1517 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:04,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 02:52:04,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 02:52:04,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 372 states have (on average 1.381720430107527) internal successors, (514), 377 states have internal predecessors, (514), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 539 transitions. [2024-11-28 02:52:04,456 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 539 transitions. Word has length 67 [2024-11-28 02:52:04,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:04,457 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 539 transitions. [2024-11-28 02:52:04,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 539 transitions. [2024-11-28 02:52:04,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 02:52:04,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:04,462 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:04,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:52:04,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:04,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:04,465 INFO L85 PathProgramCache]: Analyzing trace with hash 56749342, now seen corresponding path program 1 times [2024-11-28 02:52:04,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:04,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145552822] [2024-11-28 02:52:04,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:04,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:05,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:05,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145552822] [2024-11-28 02:52:05,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145552822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:05,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:05,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:52:05,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670682916] [2024-11-28 02:52:05,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:05,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:52:05,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:05,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:52:05,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:52:05,482 INFO L87 Difference]: Start difference. First operand 393 states and 539 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:06,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:06,259 INFO L93 Difference]: Finished difference Result 787 states and 1082 transitions. [2024-11-28 02:52:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:52:06,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 02:52:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:06,264 INFO L225 Difference]: With dead ends: 787 [2024-11-28 02:52:06,264 INFO L226 Difference]: Without dead ends: 398 [2024-11-28 02:52:06,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:06,267 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 14 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:06,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2283 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:52:06,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-28 02:52:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 395. [2024-11-28 02:52:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 374 states have (on average 1.3796791443850267) internal successors, (516), 379 states have internal predecessors, (516), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 541 transitions. [2024-11-28 02:52:06,296 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 541 transitions. Word has length 67 [2024-11-28 02:52:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:06,297 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 541 transitions. [2024-11-28 02:52:06,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 541 transitions. [2024-11-28 02:52:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:52:06,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:06,304 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:06,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:52:06,304 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:06,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:06,305 INFO L85 PathProgramCache]: Analyzing trace with hash 626195501, now seen corresponding path program 1 times [2024-11-28 02:52:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:06,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739930892] [2024-11-28 02:52:06,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:06,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:06,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:06,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739930892] [2024-11-28 02:52:06,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739930892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:06,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:06,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:06,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805421094] [2024-11-28 02:52:06,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:06,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:06,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:06,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:06,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:06,883 INFO L87 Difference]: Start difference. First operand 395 states and 541 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:07,504 INFO L93 Difference]: Finished difference Result 791 states and 1086 transitions. [2024-11-28 02:52:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:07,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-28 02:52:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:07,508 INFO L225 Difference]: With dead ends: 791 [2024-11-28 02:52:07,508 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 02:52:07,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:07,511 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 15 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:07,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2740 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:52:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 02:52:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2024-11-28 02:52:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 546 transitions. [2024-11-28 02:52:07,535 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 546 transitions. Word has length 68 [2024-11-28 02:52:07,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:07,535 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 546 transitions. [2024-11-28 02:52:07,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 546 transitions. [2024-11-28 02:52:07,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:52:07,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:07,538 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:07,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:52:07,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:07,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1834166079, now seen corresponding path program 1 times [2024-11-28 02:52:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889144443] [2024-11-28 02:52:07,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:08,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:08,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:08,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889144443] [2024-11-28 02:52:08,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889144443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:08,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:08,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:52:08,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073722382] [2024-11-28 02:52:08,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:08,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:52:08,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:08,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:52:08,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:52:08,152 INFO L87 Difference]: Start difference. First operand 399 states and 546 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:08,363 INFO L93 Difference]: Finished difference Result 794 states and 1088 transitions. [2024-11-28 02:52:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:52:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-28 02:52:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:08,367 INFO L225 Difference]: With dead ends: 794 [2024-11-28 02:52:08,367 INFO L226 Difference]: Without dead ends: 399 [2024-11-28 02:52:08,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:52:08,372 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 17 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:08,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1434 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:52:08,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-28 02:52:08,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2024-11-28 02:52:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 378 states have (on average 1.3756613756613756) internal successors, (520), 383 states have internal predecessors, (520), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 545 transitions. [2024-11-28 02:52:08,408 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 545 transitions. Word has length 68 [2024-11-28 02:52:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:08,409 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 545 transitions. [2024-11-28 02:52:08,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:08,409 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 545 transitions. [2024-11-28 02:52:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:52:08,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:08,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:08,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:52:08,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:08,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1342972566, now seen corresponding path program 1 times [2024-11-28 02:52:08,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:08,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122926725] [2024-11-28 02:52:08,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:08,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:09,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:09,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122926725] [2024-11-28 02:52:09,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122926725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:09,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:09,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:52:09,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366262061] [2024-11-28 02:52:09,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:09,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:52:09,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:09,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:52:09,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:52:09,164 INFO L87 Difference]: Start difference. First operand 399 states and 545 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:10,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:10,039 INFO L93 Difference]: Finished difference Result 807 states and 1107 transitions. [2024-11-28 02:52:10,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:52:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 02:52:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:10,044 INFO L225 Difference]: With dead ends: 807 [2024-11-28 02:52:10,044 INFO L226 Difference]: Without dead ends: 412 [2024-11-28 02:52:10,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:52:10,046 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 34 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:10,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3701 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:52:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-28 02:52:10,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2024-11-28 02:52:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 388 states have (on average 1.3762886597938144) internal successors, (534), 393 states have internal predecessors, (534), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:10,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 559 transitions. [2024-11-28 02:52:10,079 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 559 transitions. Word has length 69 [2024-11-28 02:52:10,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:10,079 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 559 transitions. [2024-11-28 02:52:10,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:10,080 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 559 transitions. [2024-11-28 02:52:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:52:10,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:10,082 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:10,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:52:10,083 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:10,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:10,084 INFO L85 PathProgramCache]: Analyzing trace with hash 269698435, now seen corresponding path program 1 times [2024-11-28 02:52:10,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:10,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417984687] [2024-11-28 02:52:10,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:10,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:10,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417984687] [2024-11-28 02:52:10,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417984687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:10,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:10,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:52:10,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600458448] [2024-11-28 02:52:10,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:10,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:52:10,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:10,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:52:10,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:52:10,870 INFO L87 Difference]: Start difference. First operand 409 states and 559 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:11,615 INFO L93 Difference]: Finished difference Result 817 states and 1119 transitions. [2024-11-28 02:52:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:52:11,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 02:52:11,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:11,619 INFO L225 Difference]: With dead ends: 817 [2024-11-28 02:52:11,619 INFO L226 Difference]: Without dead ends: 412 [2024-11-28 02:52:11,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:11,625 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 27 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:11,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3241 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:52:11,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-28 02:52:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-28 02:52:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 391 states have (on average 1.3734015345268542) internal successors, (537), 396 states have internal predecessors, (537), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 562 transitions. [2024-11-28 02:52:11,650 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 562 transitions. Word has length 69 [2024-11-28 02:52:11,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:11,650 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 562 transitions. [2024-11-28 02:52:11,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 562 transitions. [2024-11-28 02:52:11,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:52:11,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:11,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:11,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:52:11,652 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:11,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:11,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1430997699, now seen corresponding path program 1 times [2024-11-28 02:52:11,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:11,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419976115] [2024-11-28 02:52:11,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:11,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:12,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:12,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419976115] [2024-11-28 02:52:12,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419976115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:12,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:12,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:52:12,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116164871] [2024-11-28 02:52:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:12,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:52:12,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:12,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:52:12,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:52:12,122 INFO L87 Difference]: Start difference. First operand 412 states and 562 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:12,616 INFO L93 Difference]: Finished difference Result 823 states and 1125 transitions. [2024-11-28 02:52:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:52:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 02:52:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:12,622 INFO L225 Difference]: With dead ends: 823 [2024-11-28 02:52:12,622 INFO L226 Difference]: Without dead ends: 415 [2024-11-28 02:52:12,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:52:12,624 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 8 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:12,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2305 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:52:12,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-28 02:52:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-11-28 02:52:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 394 states have (on average 1.3705583756345177) internal successors, (540), 399 states have internal predecessors, (540), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 565 transitions. [2024-11-28 02:52:12,650 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 565 transitions. Word has length 69 [2024-11-28 02:52:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:12,651 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 565 transitions. [2024-11-28 02:52:12,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,652 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 565 transitions. [2024-11-28 02:52:12,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 02:52:12,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:12,653 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:12,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:52:12,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:12,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:12,654 INFO L85 PathProgramCache]: Analyzing trace with hash -112470928, now seen corresponding path program 1 times [2024-11-28 02:52:12,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:12,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027473730] [2024-11-28 02:52:12,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:12,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:13,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:13,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:13,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027473730] [2024-11-28 02:52:13,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027473730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:13,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:13,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:52:13,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035762913] [2024-11-28 02:52:13,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:13,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:52:13,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:13,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:52:13,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:52:13,597 INFO L87 Difference]: Start difference. First operand 415 states and 565 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:15,127 INFO L93 Difference]: Finished difference Result 1209 states and 1655 transitions. [2024-11-28 02:52:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:15,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-28 02:52:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:15,135 INFO L225 Difference]: With dead ends: 1209 [2024-11-28 02:52:15,135 INFO L226 Difference]: Without dead ends: 798 [2024-11-28 02:52:15,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:52:15,138 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 645 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 2929 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:15,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 2929 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:52:15,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-28 02:52:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 454. [2024-11-28 02:52:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 433 states have (on average 1.346420323325635) internal successors, (583), 438 states have internal predecessors, (583), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 608 transitions. [2024-11-28 02:52:15,177 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 608 transitions. Word has length 70 [2024-11-28 02:52:15,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:15,177 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 608 transitions. [2024-11-28 02:52:15,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 608 transitions. [2024-11-28 02:52:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 02:52:15,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:15,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:15,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:52:15,182 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:15,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash 624259524, now seen corresponding path program 1 times [2024-11-28 02:52:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:15,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923348836] [2024-11-28 02:52:15,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:15,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:15,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:15,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923348836] [2024-11-28 02:52:15,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923348836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:15,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:15,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:15,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636932113] [2024-11-28 02:52:15,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:15,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:15,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:15,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:15,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:15,613 INFO L87 Difference]: Start difference. First operand 454 states and 608 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:16,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:16,236 INFO L93 Difference]: Finished difference Result 870 states and 1177 transitions. [2024-11-28 02:52:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:16,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-28 02:52:16,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:16,240 INFO L225 Difference]: With dead ends: 870 [2024-11-28 02:52:16,240 INFO L226 Difference]: Without dead ends: 459 [2024-11-28 02:52:16,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:52:16,242 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 13 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:16,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2746 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:52:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-28 02:52:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 454. [2024-11-28 02:52:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 433 states have (on average 1.346420323325635) internal successors, (583), 438 states have internal predecessors, (583), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 608 transitions. [2024-11-28 02:52:16,270 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 608 transitions. Word has length 70 [2024-11-28 02:52:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:16,270 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 608 transitions. [2024-11-28 02:52:16,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:16,271 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 608 transitions. [2024-11-28 02:52:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:52:16,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:16,272 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:16,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:52:16,272 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:16,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:16,273 INFO L85 PathProgramCache]: Analyzing trace with hash 754738639, now seen corresponding path program 1 times [2024-11-28 02:52:16,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:16,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370324370] [2024-11-28 02:52:16,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:16,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:16,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:16,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370324370] [2024-11-28 02:52:16,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370324370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:16,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:16,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:52:16,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639741507] [2024-11-28 02:52:16,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:16,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:52:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:16,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:52:16,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:52:16,701 INFO L87 Difference]: Start difference. First operand 454 states and 608 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:17,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:17,195 INFO L93 Difference]: Finished difference Result 875 states and 1183 transitions. [2024-11-28 02:52:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:52:17,196 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-28 02:52:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:17,199 INFO L225 Difference]: With dead ends: 875 [2024-11-28 02:52:17,199 INFO L226 Difference]: Without dead ends: 464 [2024-11-28 02:52:17,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:52:17,201 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 20 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:17,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2843 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:52:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-28 02:52:17,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2024-11-28 02:52:17,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 436 states have (on average 1.3463302752293578) internal successors, (587), 441 states have internal predecessors, (587), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 612 transitions. [2024-11-28 02:52:17,226 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 612 transitions. Word has length 71 [2024-11-28 02:52:17,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:17,226 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 612 transitions. [2024-11-28 02:52:17,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 612 transitions. [2024-11-28 02:52:17,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:52:17,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:17,228 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:17,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:52:17,228 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:17,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:17,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1402987853, now seen corresponding path program 1 times [2024-11-28 02:52:17,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:17,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958133144] [2024-11-28 02:52:17,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:17,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:17,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:17,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958133144] [2024-11-28 02:52:17,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958133144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:17,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:17,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:52:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600818654] [2024-11-28 02:52:17,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:17,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:52:17,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:17,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:52:17,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:52:17,680 INFO L87 Difference]: Start difference. First operand 457 states and 612 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:18,658 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2024-11-28 02:52:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-28 02:52:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:18,663 INFO L225 Difference]: With dead ends: 893 [2024-11-28 02:52:18,664 INFO L226 Difference]: Without dead ends: 479 [2024-11-28 02:52:18,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:18,666 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 38 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3678 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:18,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3678 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:52:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-28 02:52:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 457. [2024-11-28 02:52:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 436 states have (on average 1.3463302752293578) internal successors, (587), 441 states have internal predecessors, (587), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 612 transitions. [2024-11-28 02:52:18,701 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 612 transitions. Word has length 71 [2024-11-28 02:52:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:18,702 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 612 transitions. [2024-11-28 02:52:18,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:18,702 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 612 transitions. [2024-11-28 02:52:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:52:18,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:18,704 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:18,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:52:18,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:18,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:18,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1758437004, now seen corresponding path program 1 times [2024-11-28 02:52:18,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:18,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513749061] [2024-11-28 02:52:18,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:18,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:19,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:19,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513749061] [2024-11-28 02:52:19,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513749061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:19,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:19,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:52:19,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119474204] [2024-11-28 02:52:19,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:19,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:52:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:19,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:52:19,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:19,277 INFO L87 Difference]: Start difference. First operand 457 states and 612 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:20,106 INFO L93 Difference]: Finished difference Result 887 states and 1200 transitions. [2024-11-28 02:52:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:20,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 02:52:20,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:20,111 INFO L225 Difference]: With dead ends: 887 [2024-11-28 02:52:20,111 INFO L226 Difference]: Without dead ends: 473 [2024-11-28 02:52:20,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:52:20,113 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 26 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:20,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3692 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:52:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-28 02:52:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 467. [2024-11-28 02:52:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 446 states have (on average 1.34304932735426) internal successors, (599), 451 states have internal predecessors, (599), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 624 transitions. [2024-11-28 02:52:20,142 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 624 transitions. Word has length 72 [2024-11-28 02:52:20,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:20,143 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 624 transitions. [2024-11-28 02:52:20,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 624 transitions. [2024-11-28 02:52:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:52:20,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:20,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:20,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:52:20,145 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:20,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:20,145 INFO L85 PathProgramCache]: Analyzing trace with hash 71518480, now seen corresponding path program 1 times [2024-11-28 02:52:20,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:20,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686798261] [2024-11-28 02:52:20,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:20,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:20,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:20,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686798261] [2024-11-28 02:52:20,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686798261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:20,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:20,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:52:20,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444078495] [2024-11-28 02:52:20,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:20,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:52:20,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:20,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:52:20,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:20,672 INFO L87 Difference]: Start difference. First operand 467 states and 624 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:21,563 INFO L93 Difference]: Finished difference Result 907 states and 1224 transitions. [2024-11-28 02:52:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:21,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 02:52:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:21,568 INFO L225 Difference]: With dead ends: 907 [2024-11-28 02:52:21,568 INFO L226 Difference]: Without dead ends: 483 [2024-11-28 02:52:21,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:21,570 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 17 mSDsluCounter, 3620 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:21,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4123 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:52:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-28 02:52:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 470. [2024-11-28 02:52:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 449 states have (on average 1.3429844097995545) internal successors, (603), 454 states have internal predecessors, (603), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 628 transitions. [2024-11-28 02:52:21,606 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 628 transitions. Word has length 72 [2024-11-28 02:52:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:21,607 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 628 transitions. [2024-11-28 02:52:21,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 628 transitions. [2024-11-28 02:52:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:52:21,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:21,608 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:21,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:52:21,609 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:21,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:21,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1426534256, now seen corresponding path program 1 times [2024-11-28 02:52:21,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:21,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359142924] [2024-11-28 02:52:21,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:21,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:22,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359142924] [2024-11-28 02:52:22,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359142924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:22,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:22,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:22,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481627754] [2024-11-28 02:52:22,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:22,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:22,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:22,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:22,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:22,231 INFO L87 Difference]: Start difference. First operand 470 states and 628 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:22,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:22,791 INFO L93 Difference]: Finished difference Result 902 states and 1214 transitions. [2024-11-28 02:52:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:22,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 02:52:22,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:22,796 INFO L225 Difference]: With dead ends: 902 [2024-11-28 02:52:22,796 INFO L226 Difference]: Without dead ends: 475 [2024-11-28 02:52:22,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:22,798 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 11 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:22,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2770 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:52:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-28 02:52:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 470. [2024-11-28 02:52:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 449 states have (on average 1.3407572383073496) internal successors, (602), 454 states have internal predecessors, (602), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 627 transitions. [2024-11-28 02:52:22,829 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 627 transitions. Word has length 72 [2024-11-28 02:52:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:22,829 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 627 transitions. [2024-11-28 02:52:22,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 627 transitions. [2024-11-28 02:52:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:52:22,831 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:22,831 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:22,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:52:22,832 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:22,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:22,834 INFO L85 PathProgramCache]: Analyzing trace with hash 186136745, now seen corresponding path program 1 times [2024-11-28 02:52:22,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:22,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985288294] [2024-11-28 02:52:22,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:22,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:23,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:23,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985288294] [2024-11-28 02:52:23,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985288294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:23,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:23,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928069072] [2024-11-28 02:52:23,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:23,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:23,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:23,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:23,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:23,233 INFO L87 Difference]: Start difference. First operand 470 states and 627 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:23,845 INFO L93 Difference]: Finished difference Result 900 states and 1212 transitions. [2024-11-28 02:52:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:23,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 02:52:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:23,850 INFO L225 Difference]: With dead ends: 900 [2024-11-28 02:52:23,850 INFO L226 Difference]: Without dead ends: 473 [2024-11-28 02:52:23,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:23,852 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 8 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:23,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2729 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:52:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-28 02:52:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-28 02:52:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 452 states have (on average 1.3384955752212389) internal successors, (605), 457 states have internal predecessors, (605), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:23,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 630 transitions. [2024-11-28 02:52:23,879 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 630 transitions. Word has length 72 [2024-11-28 02:52:23,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:23,880 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 630 transitions. [2024-11-28 02:52:23,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 630 transitions. [2024-11-28 02:52:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:52:23,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:23,881 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:23,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:52:23,882 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:23,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:23,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1157474350, now seen corresponding path program 1 times [2024-11-28 02:52:23,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:23,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353371778] [2024-11-28 02:52:23,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:23,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:24,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:24,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353371778] [2024-11-28 02:52:24,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353371778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:24,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:24,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:52:24,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53084509] [2024-11-28 02:52:24,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:24,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:52:24,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:24,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:52:24,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:24,573 INFO L87 Difference]: Start difference. First operand 473 states and 630 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:25,895 INFO L93 Difference]: Finished difference Result 915 states and 1231 transitions. [2024-11-28 02:52:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:25,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 02:52:25,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:25,902 INFO L225 Difference]: With dead ends: 915 [2024-11-28 02:52:25,903 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 02:52:25,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:25,905 INFO L435 NwaCegarLoop]: 514 mSDtfsCounter, 13 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3682 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:25,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3682 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:52:25,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 02:52:25,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 477. [2024-11-28 02:52:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 456 states have (on average 1.337719298245614) internal successors, (610), 461 states have internal predecessors, (610), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 635 transitions. [2024-11-28 02:52:25,935 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 635 transitions. Word has length 73 [2024-11-28 02:52:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:25,935 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 635 transitions. [2024-11-28 02:52:25,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 635 transitions. [2024-11-28 02:52:25,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:52:25,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:25,941 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:25,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:52:25,941 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:25,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash 771099327, now seen corresponding path program 1 times [2024-11-28 02:52:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:25,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675808829] [2024-11-28 02:52:25,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:25,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:26,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:26,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675808829] [2024-11-28 02:52:26,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675808829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:26,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:26,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:52:26,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134676001] [2024-11-28 02:52:26,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:26,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:52:26,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:26,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:52:26,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:26,455 INFO L87 Difference]: Start difference. First operand 477 states and 635 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:27,286 INFO L93 Difference]: Finished difference Result 924 states and 1241 transitions. [2024-11-28 02:52:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 02:52:27,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:27,291 INFO L225 Difference]: With dead ends: 924 [2024-11-28 02:52:27,291 INFO L226 Difference]: Without dead ends: 490 [2024-11-28 02:52:27,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:27,293 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 40 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 4153 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:27,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 4153 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:52:27,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-28 02:52:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 480. [2024-11-28 02:52:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 459 states have (on average 1.3355119825708062) internal successors, (613), 464 states have internal predecessors, (613), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 638 transitions. [2024-11-28 02:52:27,320 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 638 transitions. Word has length 73 [2024-11-28 02:52:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:27,320 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 638 transitions. [2024-11-28 02:52:27,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 638 transitions. [2024-11-28 02:52:27,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:52:27,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:27,322 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:27,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:52:27,323 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:27,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash -263429194, now seen corresponding path program 1 times [2024-11-28 02:52:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:27,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385778636] [2024-11-28 02:52:27,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:28,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:28,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385778636] [2024-11-28 02:52:28,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385778636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:28,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:28,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:52:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522747819] [2024-11-28 02:52:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:28,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:52:28,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:28,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:52:28,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:28,169 INFO L87 Difference]: Start difference. First operand 480 states and 638 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:32,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:52:33,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:33,791 INFO L93 Difference]: Finished difference Result 933 states and 1247 transitions. [2024-11-28 02:52:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:52:33,792 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 02:52:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:33,796 INFO L225 Difference]: With dead ends: 933 [2024-11-28 02:52:33,796 INFO L226 Difference]: Without dead ends: 496 [2024-11-28 02:52:33,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:52:33,798 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 43 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:33,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4097 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 700 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-11-28 02:52:33,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-28 02:52:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 481. [2024-11-28 02:52:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 460 states have (on average 1.3347826086956522) internal successors, (614), 465 states have internal predecessors, (614), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:52:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 639 transitions. [2024-11-28 02:52:33,826 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 639 transitions. Word has length 73 [2024-11-28 02:52:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:33,827 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 639 transitions. [2024-11-28 02:52:33,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 639 transitions. [2024-11-28 02:52:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:52:33,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:33,829 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:33,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:52:33,829 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:52:33,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:33,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1592083978, now seen corresponding path program 1 times [2024-11-28 02:52:33,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:33,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169336321] [2024-11-28 02:52:33,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:33,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:48,021 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:53:23,230 WARN L286 SmtUtils]: Spent 9.07s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:53:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:53:35,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:35,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169336321] [2024-11-28 02:53:35,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169336321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:35,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:35,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:53:35,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382311010] [2024-11-28 02:53:35,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:35,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:53:35,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:35,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:53:35,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=81, Unknown=7, NotChecked=0, Total=110 [2024-11-28 02:53:35,466 INFO L87 Difference]: Start difference. First operand 481 states and 639 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:53:40,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:44,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:45,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:47,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:49,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:51,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:55,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:59,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:03,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:07,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:11,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:16,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:20,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:24,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:29,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:33,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:37,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:41,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:45,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:49,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:53,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:54:57,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:55:36,499 WARN L286 SmtUtils]: Spent 23.09s on a formula simplification. DAG size of input: 42 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:55:40,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:55:44,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:55:48,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:55:52,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:55:56,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:00,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:01,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:05,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:10,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:14,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:16,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:20,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:24,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:28,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:32,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:35,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:36,197 INFO L93 Difference]: Finished difference Result 946 states and 1273 transitions. [2024-11-28 02:56:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:56:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 02:56:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:36,201 INFO L225 Difference]: With dead ends: 946 [2024-11-28 02:56:36,202 INFO L226 Difference]: Without dead ends: 508 [2024-11-28 02:56:36,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 84.1s TimeCoverageRelationStatistics Valid=26, Invalid=95, Unknown=11, NotChecked=0, Total=132 [2024-11-28 02:56:36,203 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 52 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 2 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:36,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4136 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 848 Invalid, 30 Unknown, 0 Unchecked, 141.5s Time] [2024-11-28 02:56:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-28 02:56:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 487. [2024-11-28 02:56:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 466 states have (on average 1.3347639484978542) internal successors, (622), 471 states have internal predecessors, (622), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 647 transitions. [2024-11-28 02:56:36,227 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 647 transitions. Word has length 73 [2024-11-28 02:56:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:36,227 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 647 transitions. [2024-11-28 02:56:36,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 647 transitions. [2024-11-28 02:56:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:56:36,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:36,229 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:36,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:56:36,229 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:36,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2099892114, now seen corresponding path program 1 times [2024-11-28 02:56:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134729168] [2024-11-28 02:56:36,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:36,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:36,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134729168] [2024-11-28 02:56:36,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134729168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:36,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:36,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:56:36,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806090871] [2024-11-28 02:56:36,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:36,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:56:36,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:36,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:56:36,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:56:36,548 INFO L87 Difference]: Start difference. First operand 487 states and 647 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:37,481 INFO L93 Difference]: Finished difference Result 952 states and 1272 transitions. [2024-11-28 02:56:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:56:37,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 02:56:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:37,490 INFO L225 Difference]: With dead ends: 952 [2024-11-28 02:56:37,491 INFO L226 Difference]: Without dead ends: 508 [2024-11-28 02:56:37,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:56:37,495 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 34 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3678 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:37,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3678 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:56:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-28 02:56:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 484. [2024-11-28 02:56:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 463 states have (on average 1.3369330453563715) internal successors, (619), 468 states have internal predecessors, (619), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 644 transitions. [2024-11-28 02:56:37,521 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 644 transitions. Word has length 73 [2024-11-28 02:56:37,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:37,522 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 644 transitions. [2024-11-28 02:56:37,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:37,522 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 644 transitions. [2024-11-28 02:56:37,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:37,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:37,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:37,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:56:37,524 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:37,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:37,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1327027261, now seen corresponding path program 1 times [2024-11-28 02:56:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094436453] [2024-11-28 02:56:37,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:38,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:38,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094436453] [2024-11-28 02:56:38,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094436453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:38,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:38,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:56:38,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787370949] [2024-11-28 02:56:38,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:38,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:56:38,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:38,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:56:38,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:56:38,036 INFO L87 Difference]: Start difference. First operand 484 states and 644 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:38,960 INFO L93 Difference]: Finished difference Result 937 states and 1259 transitions. [2024-11-28 02:56:38,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:56:38,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:56:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:38,964 INFO L225 Difference]: With dead ends: 937 [2024-11-28 02:56:38,964 INFO L226 Difference]: Without dead ends: 496 [2024-11-28 02:56:38,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:56:38,966 INFO L435 NwaCegarLoop]: 514 mSDtfsCounter, 16 mSDsluCounter, 4085 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:38,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4599 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:56:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-28 02:56:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 491. [2024-11-28 02:56:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 470 states have (on average 1.3361702127659574) internal successors, (628), 475 states have internal predecessors, (628), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 653 transitions. [2024-11-28 02:56:38,991 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 653 transitions. Word has length 74 [2024-11-28 02:56:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:38,992 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 653 transitions. [2024-11-28 02:56:38,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:38,992 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 653 transitions. [2024-11-28 02:56:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:38,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:38,993 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:38,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:56:38,993 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:38,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1382843083, now seen corresponding path program 1 times [2024-11-28 02:56:38,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:38,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74228275] [2024-11-28 02:56:38,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:39,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:39,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74228275] [2024-11-28 02:56:39,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74228275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:39,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:39,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:56:39,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859747122] [2024-11-28 02:56:39,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:39,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:56:39,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:39,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:56:39,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:56:39,474 INFO L87 Difference]: Start difference. First operand 491 states and 653 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:40,342 INFO L93 Difference]: Finished difference Result 944 states and 1267 transitions. [2024-11-28 02:56:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:56:40,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:56:40,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:40,346 INFO L225 Difference]: With dead ends: 944 [2024-11-28 02:56:40,347 INFO L226 Difference]: Without dead ends: 496 [2024-11-28 02:56:40,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:56:40,349 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 37 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:40,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3266 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:56:40,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-28 02:56:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 488. [2024-11-28 02:56:40,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 467 states have (on average 1.3361884368308352) internal successors, (624), 472 states have internal predecessors, (624), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 649 transitions. [2024-11-28 02:56:40,372 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 649 transitions. Word has length 74 [2024-11-28 02:56:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:40,372 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 649 transitions. [2024-11-28 02:56:40,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 649 transitions. [2024-11-28 02:56:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:40,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:40,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:40,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:56:40,374 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:40,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:40,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1084753645, now seen corresponding path program 1 times [2024-11-28 02:56:40,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:40,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858321157] [2024-11-28 02:56:40,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:40,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:40,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:40,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:40,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858321157] [2024-11-28 02:56:40,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858321157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:40,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:40,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:56:40,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532935236] [2024-11-28 02:56:40,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:40,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:56:40,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:40,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:56:40,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:56:40,690 INFO L87 Difference]: Start difference. First operand 488 states and 649 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:41,164 INFO L93 Difference]: Finished difference Result 934 states and 1252 transitions. [2024-11-28 02:56:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:56:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:56:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:41,168 INFO L225 Difference]: With dead ends: 934 [2024-11-28 02:56:41,168 INFO L226 Difference]: Without dead ends: 489 [2024-11-28 02:56:41,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:56:41,170 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 53 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:41,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 2821 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:56:41,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-28 02:56:41,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 485. [2024-11-28 02:56:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 464 states have (on average 1.3362068965517242) internal successors, (620), 469 states have internal predecessors, (620), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 645 transitions. [2024-11-28 02:56:41,193 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 645 transitions. Word has length 74 [2024-11-28 02:56:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:41,193 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 645 transitions. [2024-11-28 02:56:41,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 645 transitions. [2024-11-28 02:56:41,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:41,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:41,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:41,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 02:56:41,195 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:41,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1416685997, now seen corresponding path program 1 times [2024-11-28 02:56:41,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:41,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663628840] [2024-11-28 02:56:41,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:41,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:41,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:41,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663628840] [2024-11-28 02:56:41,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663628840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:41,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:41,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:56:41,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787741592] [2024-11-28 02:56:41,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:41,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:56:41,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:41,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:56:41,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:56:41,770 INFO L87 Difference]: Start difference. First operand 485 states and 645 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:43,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:56:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:43,770 INFO L93 Difference]: Finished difference Result 943 states and 1268 transitions. [2024-11-28 02:56:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:56:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:56:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:43,775 INFO L225 Difference]: With dead ends: 943 [2024-11-28 02:56:43,775 INFO L226 Difference]: Without dead ends: 501 [2024-11-28 02:56:43,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:56:43,777 INFO L435 NwaCegarLoop]: 497 mSDtfsCounter, 18 mSDsluCounter, 4489 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4986 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:43,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4986 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 02:56:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-28 02:56:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 486. [2024-11-28 02:56:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 465 states have (on average 1.335483870967742) internal successors, (621), 470 states have internal predecessors, (621), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 646 transitions. [2024-11-28 02:56:43,800 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 646 transitions. Word has length 74 [2024-11-28 02:56:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:43,800 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 646 transitions. [2024-11-28 02:56:43,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 646 transitions. [2024-11-28 02:56:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:43,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:43,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:43,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:56:43,802 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:43,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:43,803 INFO L85 PathProgramCache]: Analyzing trace with hash -182846351, now seen corresponding path program 1 times [2024-11-28 02:56:43,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:43,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866070018] [2024-11-28 02:56:43,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:43,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:44,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:44,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866070018] [2024-11-28 02:56:44,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866070018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:44,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:44,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:56:44,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067785822] [2024-11-28 02:56:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:44,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:56:44,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:44,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:56:44,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:56:44,543 INFO L87 Difference]: Start difference. First operand 486 states and 646 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:45,795 INFO L93 Difference]: Finished difference Result 961 states and 1288 transitions. [2024-11-28 02:56:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:56:45,796 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:56:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:45,799 INFO L225 Difference]: With dead ends: 961 [2024-11-28 02:56:45,800 INFO L226 Difference]: Without dead ends: 518 [2024-11-28 02:56:45,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:56:45,801 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 47 mSDsluCounter, 4987 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:45,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 5493 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:56:45,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-28 02:56:45,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 495. [2024-11-28 02:56:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 474 states have (on average 1.3354430379746836) internal successors, (633), 479 states have internal predecessors, (633), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:56:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 658 transitions. [2024-11-28 02:56:45,827 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 658 transitions. Word has length 74 [2024-11-28 02:56:45,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:45,827 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 658 transitions. [2024-11-28 02:56:45,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:45,827 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 658 transitions. [2024-11-28 02:56:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:45,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:45,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:45,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 02:56:45,829 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:56:45,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 663989509, now seen corresponding path program 1 times [2024-11-28 02:56:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:45,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522662586] [2024-11-28 02:56:45,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:45,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:21,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:21,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522662586] [2024-11-28 02:57:21,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522662586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:21,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:21,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:57:21,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785024245] [2024-11-28 02:57:21,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:21,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:57:21,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:21,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:57:21,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:57:21,243 INFO L87 Difference]: Start difference. First operand 495 states and 658 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:22,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:22,954 INFO L93 Difference]: Finished difference Result 1019 states and 1370 transitions. [2024-11-28 02:57:22,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:57:22,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:57:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:22,958 INFO L225 Difference]: With dead ends: 1019 [2024-11-28 02:57:22,958 INFO L226 Difference]: Without dead ends: 567 [2024-11-28 02:57:22,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:57:22,963 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 112 mSDsluCounter, 4241 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:22,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 4778 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 02:57:22,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-28 02:57:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 496. [2024-11-28 02:57:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 475 states have (on average 1.3368421052631578) internal successors, (635), 480 states have internal predecessors, (635), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 660 transitions. [2024-11-28 02:57:23,003 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 660 transitions. Word has length 74 [2024-11-28 02:57:23,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:23,007 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 660 transitions. [2024-11-28 02:57:23,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:23,007 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 660 transitions. [2024-11-28 02:57:23,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:57:23,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:23,008 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:23,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 02:57:23,008 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:23,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:23,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1570535271, now seen corresponding path program 1 times [2024-11-28 02:57:23,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:23,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088598452] [2024-11-28 02:57:23,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:23,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:23,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:23,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:23,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088598452] [2024-11-28 02:57:23,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088598452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:23,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:23,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:57:23,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211032221] [2024-11-28 02:57:23,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:23,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:57:23,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:23,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:57:23,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:57:23,981 INFO L87 Difference]: Start difference. First operand 496 states and 660 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:28,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:57:29,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:57:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:31,271 INFO L93 Difference]: Finished difference Result 970 states and 1303 transitions. [2024-11-28 02:57:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:57:31,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:57:31,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:31,275 INFO L225 Difference]: With dead ends: 970 [2024-11-28 02:57:31,275 INFO L226 Difference]: Without dead ends: 517 [2024-11-28 02:57:31,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:31,277 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 82 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:31,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 3641 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 643 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 02:57:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-28 02:57:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 496. [2024-11-28 02:57:31,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 475 states have (on average 1.3368421052631578) internal successors, (635), 480 states have internal predecessors, (635), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 660 transitions. [2024-11-28 02:57:31,296 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 660 transitions. Word has length 74 [2024-11-28 02:57:31,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:31,297 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 660 transitions. [2024-11-28 02:57:31,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 660 transitions. [2024-11-28 02:57:31,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:57:31,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:31,298 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:31,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 02:57:31,299 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:31,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1465200851, now seen corresponding path program 1 times [2024-11-28 02:57:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:31,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179877476] [2024-11-28 02:57:31,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:31,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:31,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179877476] [2024-11-28 02:57:31,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179877476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:31,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:31,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:57:31,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599657551] [2024-11-28 02:57:31,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:31,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:57:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:31,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:57:31,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:57:31,523 INFO L87 Difference]: Start difference. First operand 496 states and 660 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:32,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:32,125 INFO L93 Difference]: Finished difference Result 983 states and 1315 transitions. [2024-11-28 02:57:32,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:57:32,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:57:32,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:32,127 INFO L225 Difference]: With dead ends: 983 [2024-11-28 02:57:32,128 INFO L226 Difference]: Without dead ends: 530 [2024-11-28 02:57:32,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:32,129 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 99 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:32,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2330 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:57:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-28 02:57:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 492. [2024-11-28 02:57:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 471 states have (on average 1.3397027600849256) internal successors, (631), 476 states have internal predecessors, (631), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 656 transitions. [2024-11-28 02:57:32,149 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 656 transitions. Word has length 74 [2024-11-28 02:57:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:32,150 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 656 transitions. [2024-11-28 02:57:32,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:32,150 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 656 transitions. [2024-11-28 02:57:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:57:32,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:32,151 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:32,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 02:57:32,152 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:32,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:32,152 INFO L85 PathProgramCache]: Analyzing trace with hash -57677131, now seen corresponding path program 1 times [2024-11-28 02:57:32,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544165246] [2024-11-28 02:57:32,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:32,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:32,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:32,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544165246] [2024-11-28 02:57:32,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544165246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:32,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:32,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:57:32,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027011900] [2024-11-28 02:57:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:32,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:57:32,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:32,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:57:32,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:57:32,514 INFO L87 Difference]: Start difference. First operand 492 states and 656 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:35,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:57:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:35,940 INFO L93 Difference]: Finished difference Result 960 states and 1288 transitions. [2024-11-28 02:57:35,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:57:35,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 02:57:35,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:35,943 INFO L225 Difference]: With dead ends: 960 [2024-11-28 02:57:35,944 INFO L226 Difference]: Without dead ends: 502 [2024-11-28 02:57:35,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:57:35,945 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 12 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:35,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4151 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 02:57:35,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-28 02:57:35,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 492. [2024-11-28 02:57:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 471 states have (on average 1.3397027600849256) internal successors, (631), 476 states have internal predecessors, (631), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 656 transitions. [2024-11-28 02:57:35,964 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 656 transitions. Word has length 74 [2024-11-28 02:57:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:35,964 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 656 transitions. [2024-11-28 02:57:35,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 656 transitions. [2024-11-28 02:57:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:35,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:35,965 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:35,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 02:57:35,966 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:35,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1328946313, now seen corresponding path program 1 times [2024-11-28 02:57:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:35,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8572546] [2024-11-28 02:57:35,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:35,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:36,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:36,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8572546] [2024-11-28 02:57:36,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8572546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:36,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:36,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:57:36,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116237702] [2024-11-28 02:57:36,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:36,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:57:36,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:36,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:57:36,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:57:36,750 INFO L87 Difference]: Start difference. First operand 492 states and 656 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:37,550 INFO L93 Difference]: Finished difference Result 946 states and 1270 transitions. [2024-11-28 02:57:37,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:57:37,551 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:37,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:37,553 INFO L225 Difference]: With dead ends: 946 [2024-11-28 02:57:37,553 INFO L226 Difference]: Without dead ends: 488 [2024-11-28 02:57:37,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:57:37,555 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 12 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4093 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:37,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4093 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:57:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-28 02:57:37,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 478. [2024-11-28 02:57:37,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 457 states have (on average 1.3435448577680524) internal successors, (614), 462 states have internal predecessors, (614), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 639 transitions. [2024-11-28 02:57:37,576 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 639 transitions. Word has length 75 [2024-11-28 02:57:37,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:37,576 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 639 transitions. [2024-11-28 02:57:37,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:37,576 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 639 transitions. [2024-11-28 02:57:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:37,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:37,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:37,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 02:57:37,578 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:37,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash 486374430, now seen corresponding path program 1 times [2024-11-28 02:57:37,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:37,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436361848] [2024-11-28 02:57:37,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:37,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:38,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:38,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436361848] [2024-11-28 02:57:38,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436361848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:38,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:38,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:57:38,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256761970] [2024-11-28 02:57:38,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:38,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:57:38,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:38,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:57:38,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:57:38,124 INFO L87 Difference]: Start difference. First operand 478 states and 639 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:38,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:38,927 INFO L93 Difference]: Finished difference Result 938 states and 1259 transitions. [2024-11-28 02:57:38,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:57:38,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:38,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:38,931 INFO L225 Difference]: With dead ends: 938 [2024-11-28 02:57:38,931 INFO L226 Difference]: Without dead ends: 494 [2024-11-28 02:57:38,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:57:38,932 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 13 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4128 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:38,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4128 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:57:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-28 02:57:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 489. [2024-11-28 02:57:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 468 states have (on average 1.3376068376068375) internal successors, (626), 473 states have internal predecessors, (626), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:38,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 651 transitions. [2024-11-28 02:57:38,949 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 651 transitions. Word has length 75 [2024-11-28 02:57:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:38,949 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 651 transitions. [2024-11-28 02:57:38,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:38,949 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 651 transitions. [2024-11-28 02:57:38,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:38,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:38,950 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:38,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 02:57:38,951 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:38,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:38,952 INFO L85 PathProgramCache]: Analyzing trace with hash 670310146, now seen corresponding path program 1 times [2024-11-28 02:57:38,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:38,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015320853] [2024-11-28 02:57:38,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:38,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:39,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:39,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015320853] [2024-11-28 02:57:39,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015320853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:39,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:39,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:57:39,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229750223] [2024-11-28 02:57:39,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:39,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:57:39,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:39,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:57:39,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:57:39,390 INFO L87 Difference]: Start difference. First operand 489 states and 651 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:40,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:40,227 INFO L93 Difference]: Finished difference Result 959 states and 1285 transitions. [2024-11-28 02:57:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:57:40,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:40,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:40,230 INFO L225 Difference]: With dead ends: 959 [2024-11-28 02:57:40,230 INFO L226 Difference]: Without dead ends: 504 [2024-11-28 02:57:40,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:40,232 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 17 mSDsluCounter, 4514 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5031 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:40,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5031 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:57:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-28 02:57:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 494. [2024-11-28 02:57:40,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 473 states have (on average 1.3361522198731501) internal successors, (632), 478 states have internal predecessors, (632), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:40,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 657 transitions. [2024-11-28 02:57:40,249 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 657 transitions. Word has length 75 [2024-11-28 02:57:40,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:40,249 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 657 transitions. [2024-11-28 02:57:40,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 657 transitions. [2024-11-28 02:57:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:40,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:40,251 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:40,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 02:57:40,251 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:40,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1034564936, now seen corresponding path program 1 times [2024-11-28 02:57:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603669879] [2024-11-28 02:57:40,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:40,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:40,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603669879] [2024-11-28 02:57:40,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603669879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:40,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:40,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:57:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890274672] [2024-11-28 02:57:40,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:40,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:57:40,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:40,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:57:40,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:57:40,839 INFO L87 Difference]: Start difference. First operand 494 states and 657 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:42,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:42,397 INFO L93 Difference]: Finished difference Result 977 states and 1308 transitions. [2024-11-28 02:57:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:57:42,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:42,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:42,400 INFO L225 Difference]: With dead ends: 977 [2024-11-28 02:57:42,401 INFO L226 Difference]: Without dead ends: 517 [2024-11-28 02:57:42,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:57:42,402 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 49 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5982 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:42,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5982 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 02:57:42,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-28 02:57:42,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 494. [2024-11-28 02:57:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 473 states have (on average 1.3361522198731501) internal successors, (632), 478 states have internal predecessors, (632), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 657 transitions. [2024-11-28 02:57:42,420 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 657 transitions. Word has length 75 [2024-11-28 02:57:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:42,420 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 657 transitions. [2024-11-28 02:57:42,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 657 transitions. [2024-11-28 02:57:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:42,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:42,421 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:42,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 02:57:42,421 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:42,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:42,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1881400796, now seen corresponding path program 1 times [2024-11-28 02:57:42,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:42,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884403264] [2024-11-28 02:57:42,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:42,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:42,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884403264] [2024-11-28 02:57:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884403264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:42,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:42,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:57:42,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534430622] [2024-11-28 02:57:42,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:42,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:57:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:42,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:57:42,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:57:42,901 INFO L87 Difference]: Start difference. First operand 494 states and 657 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:43,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:43,862 INFO L93 Difference]: Finished difference Result 966 states and 1295 transitions. [2024-11-28 02:57:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:57:43,865 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:43,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:43,868 INFO L225 Difference]: With dead ends: 966 [2024-11-28 02:57:43,868 INFO L226 Difference]: Without dead ends: 506 [2024-11-28 02:57:43,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:43,870 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 17 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:43,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5006 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:57:43,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-28 02:57:43,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 492. [2024-11-28 02:57:43,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 471 states have (on average 1.335456475583864) internal successors, (629), 476 states have internal predecessors, (629), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 654 transitions. [2024-11-28 02:57:43,895 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 654 transitions. Word has length 75 [2024-11-28 02:57:43,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:43,896 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 654 transitions. [2024-11-28 02:57:43,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:43,896 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 654 transitions. [2024-11-28 02:57:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:43,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:43,897 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:43,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 02:57:43,898 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:43,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:43,898 INFO L85 PathProgramCache]: Analyzing trace with hash -353123984, now seen corresponding path program 1 times [2024-11-28 02:57:43,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:43,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92468576] [2024-11-28 02:57:43,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:43,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:44,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:44,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92468576] [2024-11-28 02:57:44,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92468576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:44,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:44,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:57:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591772865] [2024-11-28 02:57:44,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:44,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:57:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:44,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:57:44,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:57:44,241 INFO L87 Difference]: Start difference. First operand 492 states and 654 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:44,920 INFO L93 Difference]: Finished difference Result 959 states and 1284 transitions. [2024-11-28 02:57:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:57:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:44,924 INFO L225 Difference]: With dead ends: 959 [2024-11-28 02:57:44,924 INFO L226 Difference]: Without dead ends: 501 [2024-11-28 02:57:44,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:57:44,925 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 48 mSDsluCounter, 3591 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:44,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 4097 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:57:44,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-28 02:57:44,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 490. [2024-11-28 02:57:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 469 states have (on average 1.3347547974413647) internal successors, (626), 474 states have internal predecessors, (626), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:44,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 651 transitions. [2024-11-28 02:57:44,943 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 651 transitions. Word has length 75 [2024-11-28 02:57:44,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:44,944 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 651 transitions. [2024-11-28 02:57:44,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:44,944 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 651 transitions. [2024-11-28 02:57:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:44,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:44,945 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:44,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 02:57:44,945 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:44,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:44,946 INFO L85 PathProgramCache]: Analyzing trace with hash 552029526, now seen corresponding path program 1 times [2024-11-28 02:57:44,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:44,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006920801] [2024-11-28 02:57:44,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:44,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:45,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006920801] [2024-11-28 02:57:45,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006920801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:45,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:45,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:57:45,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924919101] [2024-11-28 02:57:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:45,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:57:45,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:45,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:57:45,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:45,609 INFO L87 Difference]: Start difference. First operand 490 states and 651 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:47,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:47,205 INFO L93 Difference]: Finished difference Result 972 states and 1303 transitions. [2024-11-28 02:57:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:57:47,206 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 02:57:47,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:47,209 INFO L225 Difference]: With dead ends: 972 [2024-11-28 02:57:47,209 INFO L226 Difference]: Without dead ends: 516 [2024-11-28 02:57:47,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:47,210 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 27 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5408 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:47,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5408 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:57:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-28 02:57:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 500. [2024-11-28 02:57:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 479 states have (on average 1.3340292275574113) internal successors, (639), 484 states have internal predecessors, (639), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:57:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 664 transitions. [2024-11-28 02:57:47,228 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 664 transitions. Word has length 75 [2024-11-28 02:57:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:47,228 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 664 transitions. [2024-11-28 02:57:47,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 664 transitions. [2024-11-28 02:57:47,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:47,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:47,229 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:47,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 02:57:47,229 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:57:47,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1685642863, now seen corresponding path program 1 times [2024-11-28 02:57:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:47,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662135036] [2024-11-28 02:57:47,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:47,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat