./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cf2833edd1cdae0e001cafaa7cd8c6b44382f8b73a263b509a9183609c6c876 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:57:42,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:57:42,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:57:42,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:57:42,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:57:42,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:57:42,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:57:42,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:57:42,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:57:42,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:57:42,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:57:42,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:57:42,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:57:42,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:57:42,548 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:57:42,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:57:42,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:57:42,548 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:57:42,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:57:42,549 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:57:42,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:57:42,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:57:42,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:57:42,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:57:42,551 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:57:42,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:57:42,554 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:57:42,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:57:42,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:57:42,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:57:42,555 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:57:42,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:57:42,555 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_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cf2833edd1cdae0e001cafaa7cd8c6b44382f8b73a263b509a9183609c6c876 [2024-11-24 00:57:42,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:57:42,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:57:42,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:57:42,899 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:57:42,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:57:42,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i [2024-11-24 00:57:45,918 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/data/202bd5440/3e9779fe33ed4fbe88fa7c9cf30d0f10/FLAGfc8c38f60 [2024-11-24 00:57:46,201 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:57:46,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i [2024-11-24 00:57:46,212 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/data/202bd5440/3e9779fe33ed4fbe88fa7c9cf30d0f10/FLAGfc8c38f60 [2024-11-24 00:57:46,499 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/data/202bd5440/3e9779fe33ed4fbe88fa7c9cf30d0f10 [2024-11-24 00:57:46,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:57:46,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:57:46,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:57:46,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:57:46,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:57:46,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d79f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46, skipping insertion in model container [2024-11-24 00:57:46,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:57:46,691 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_66b59583-7b0b-4574-9901-b92c80bcde75/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i[917,930] [2024-11-24 00:57:46,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:57:46,807 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:57:46,818 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_66b59583-7b0b-4574-9901-b92c80bcde75/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i[917,930] [2024-11-24 00:57:46,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:57:46,875 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:57:46,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46 WrapperNode [2024-11-24 00:57:46,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:57:46,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:57:46,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:57:46,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:57:46,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,945 INFO L138 Inliner]: procedures = 29, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512 [2024-11-24 00:57:46,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:57:46,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:57:46,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:57:46,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:57:46,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,967 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,988 INFO L175 MemorySlicer]: Split 127 memory accesses to 6 slices as follows [2, 16, 51, 25, 10, 23]. 40 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 5, 2, 1, 2]. The 16 writes are split as follows [0, 2, 6, 4, 1, 3]. [2024-11-24 00:57:46,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:46,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,013 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:57:47,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:57:47,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:57:47,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:57:47,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (1/1) ... [2024-11-24 00:57:47,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:57:47,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:57:47,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:57:47,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:57:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:57:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 00:57:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 00:57:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-24 00:57:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-24 00:57:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 00:57:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 00:57:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-24 00:57:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-24 00:57:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-24 00:57:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-24 00:57:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:57:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:57:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:57:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:57:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:57:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:57:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 00:57:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 00:57:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-24 00:57:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-24 00:57:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-24 00:57:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:57:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:57:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:57:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:57:47,366 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:57:47,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:57:48,025 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-24 00:57:48,025 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:57:48,038 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:57:48,038 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:57:48,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:48 BoogieIcfgContainer [2024-11-24 00:57:48,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:57:48,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:57:48,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:57:48,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:57:48,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:57:46" (1/3) ... [2024-11-24 00:57:48,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e92fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:57:48, skipping insertion in model container [2024-11-24 00:57:48,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:46" (2/3) ... [2024-11-24 00:57:48,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e92fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:57:48, skipping insertion in model container [2024-11-24 00:57:48,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:48" (3/3) ... [2024-11-24 00:57:48,049 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-15.i [2024-11-24 00:57:48,065 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:57:48,067 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-15.i that has 2 procedures, 113 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:57:48,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:57:48,160 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;@7e04427f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:57:48,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:57:48,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 98 states have (on average 1.4489795918367347) internal successors, (142), 99 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:57:48,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:57:48,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:48,187 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:48,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:48,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:48,197 INFO L85 PathProgramCache]: Analyzing trace with hash 31279224, now seen corresponding path program 1 times [2024-11-24 00:57:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:48,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678667294] [2024-11-24 00:57:48,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-24 00:57:48,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:48,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678667294] [2024-11-24 00:57:48,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678667294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:57:48,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351943139] [2024-11-24 00:57:48,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:48,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:57:48,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:57:48,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:57:48,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:57:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:48,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:57:48,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:57:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-24 00:57:48,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:57:48,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351943139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:48,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:57:48,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:57:48,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878684166] [2024-11-24 00:57:48,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:48,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:57:48,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:48,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:57:48,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:57:48,974 INFO L87 Difference]: Start difference. First operand has 113 states, 98 states have (on average 1.4489795918367347) internal successors, (142), 99 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:57:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:49,010 INFO L93 Difference]: Finished difference Result 219 states and 338 transitions. [2024-11-24 00:57:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:57:49,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-24 00:57:49,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:49,020 INFO L225 Difference]: With dead ends: 219 [2024-11-24 00:57:49,020 INFO L226 Difference]: Without dead ends: 109 [2024-11-24 00:57:49,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:57:49,028 INFO L435 NwaCegarLoop]: 157 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, 157 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 [2024-11-24 00:57:49,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:57:49,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-24 00:57:49,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-24 00:57:49,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:57:49,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-11-24 00:57:49,089 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 115 [2024-11-24 00:57:49,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:49,089 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-11-24 00:57:49,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:57:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-11-24 00:57:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:57:49,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:49,095 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:49,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:57:49,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:57:49,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:49,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1829017178, now seen corresponding path program 1 times [2024-11-24 00:57:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109377457] [2024-11-24 00:57:49,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:49,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:49,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109377457] [2024-11-24 00:57:49,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109377457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:49,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:49,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:57:49,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536749408] [2024-11-24 00:57:49,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:49,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:57:49,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:49,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:57:49,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:57:49,793 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:57:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:49,842 INFO L93 Difference]: Finished difference Result 217 states and 314 transitions. [2024-11-24 00:57:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:57:49,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-24 00:57:49,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:49,844 INFO L225 Difference]: With dead ends: 217 [2024-11-24 00:57:49,845 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 00:57:49,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:57:49,846 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:49,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:57:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 00:57:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-24 00:57:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:57:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-24 00:57:49,857 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 115 [2024-11-24 00:57:49,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:49,860 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-24 00:57:49,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:57:49,861 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-24 00:57:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:57:49,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:49,862 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:49,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:57:49,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:49,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:49,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1512009960, now seen corresponding path program 1 times [2024-11-24 00:57:49,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40663024] [2024-11-24 00:57:49,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:49,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:50,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:50,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40663024] [2024-11-24 00:57:50,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40663024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:50,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:50,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:57:50,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414869471] [2024-11-24 00:57:50,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:50,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:57:50,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:50,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:57:50,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:57:50,071 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:50,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:50,096 INFO L93 Difference]: Finished difference Result 220 states and 317 transitions. [2024-11-24 00:57:50,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:57:50,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-24 00:57:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:50,101 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:57:50,101 INFO L226 Difference]: Without dead ends: 112 [2024-11-24 00:57:50,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:57:50,103 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:50,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:57:50,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-24 00:57:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-24 00:57:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 98 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:57:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 160 transitions. [2024-11-24 00:57:50,123 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 160 transitions. Word has length 115 [2024-11-24 00:57:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:50,127 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 160 transitions. [2024-11-24 00:57:50,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 160 transitions. [2024-11-24 00:57:50,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:57:50,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:50,129 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:50,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:57:50,130 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:50,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash -176933782, now seen corresponding path program 1 times [2024-11-24 00:57:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417299692] [2024-11-24 00:57:50,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:50,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:50,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417299692] [2024-11-24 00:57:50,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417299692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:50,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:50,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:57:50,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128050171] [2024-11-24 00:57:50,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:50,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:57:50,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:50,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:57:50,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:57:50,324 INFO L87 Difference]: Start difference. First operand 112 states and 160 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:50,363 INFO L93 Difference]: Finished difference Result 222 states and 319 transitions. [2024-11-24 00:57:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:57:50,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-24 00:57:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:50,365 INFO L225 Difference]: With dead ends: 222 [2024-11-24 00:57:50,365 INFO L226 Difference]: Without dead ends: 113 [2024-11-24 00:57:50,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:57:50,371 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:50,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:57:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-24 00:57:50,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-24 00:57:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:57:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-11-24 00:57:50,390 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 115 [2024-11-24 00:57:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:50,391 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-11-24 00:57:50,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-11-24 00:57:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:57:50,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:50,393 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:50,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:57:50,397 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:50,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:50,397 INFO L85 PathProgramCache]: Analyzing trace with hash 81231656, now seen corresponding path program 1 times [2024-11-24 00:57:50,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:50,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794201370] [2024-11-24 00:57:50,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:50,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:51,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:51,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794201370] [2024-11-24 00:57:51,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794201370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:51,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:51,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:51,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690294369] [2024-11-24 00:57:51,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:51,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:51,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:51,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:51,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:51,048 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:51,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:51,178 INFO L93 Difference]: Finished difference Result 333 states and 477 transitions. [2024-11-24 00:57:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:57:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-24 00:57:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:51,180 INFO L225 Difference]: With dead ends: 333 [2024-11-24 00:57:51,181 INFO L226 Difference]: Without dead ends: 223 [2024-11-24 00:57:51,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:51,184 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 247 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:51,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 440 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:51,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-24 00:57:51,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 218. [2024-11-24 00:57:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 191 states have (on average 1.387434554973822) internal successors, (265), 191 states have internal predecessors, (265), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 00:57:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 313 transitions. [2024-11-24 00:57:51,223 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 313 transitions. Word has length 115 [2024-11-24 00:57:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:51,225 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 313 transitions. [2024-11-24 00:57:51,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:51,226 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 313 transitions. [2024-11-24 00:57:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 00:57:51,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:51,230 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:51,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:57:51,230 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:51,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1305195944, now seen corresponding path program 1 times [2024-11-24 00:57:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:51,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773604940] [2024-11-24 00:57:51,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:51,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:51,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:51,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773604940] [2024-11-24 00:57:51,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773604940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:51,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:51,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:57:51,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560812447] [2024-11-24 00:57:51,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:51,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:57:51,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:51,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:57:51,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:51,933 INFO L87 Difference]: Start difference. First operand 218 states and 313 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:52,206 INFO L93 Difference]: Finished difference Result 437 states and 627 transitions. [2024-11-24 00:57:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:57:52,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-24 00:57:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:52,209 INFO L225 Difference]: With dead ends: 437 [2024-11-24 00:57:52,210 INFO L226 Difference]: Without dead ends: 222 [2024-11-24 00:57:52,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:57:52,212 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 152 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:52,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 817 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:57:52,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-24 00:57:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 217. [2024-11-24 00:57:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 190 states have (on average 1.3842105263157896) internal successors, (263), 190 states have internal predecessors, (263), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 00:57:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 311 transitions. [2024-11-24 00:57:52,245 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 311 transitions. Word has length 116 [2024-11-24 00:57:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:52,246 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 311 transitions. [2024-11-24 00:57:52,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 311 transitions. [2024-11-24 00:57:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:57:52,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:52,250 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:52,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:57:52,251 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:52,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:52,251 INFO L85 PathProgramCache]: Analyzing trace with hash 635553891, now seen corresponding path program 1 times [2024-11-24 00:57:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:52,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819321446] [2024-11-24 00:57:52,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:52,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:52,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819321446] [2024-11-24 00:57:52,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819321446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:52,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:52,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:57:52,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933630163] [2024-11-24 00:57:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:52,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:57:52,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:52,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:57:52,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:52,952 INFO L87 Difference]: Start difference. First operand 217 states and 311 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:53,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:53,291 INFO L93 Difference]: Finished difference Result 498 states and 713 transitions. [2024-11-24 00:57:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:57:53,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-24 00:57:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:53,294 INFO L225 Difference]: With dead ends: 498 [2024-11-24 00:57:53,294 INFO L226 Difference]: Without dead ends: 388 [2024-11-24 00:57:53,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:57:53,295 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 215 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:53,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 820 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:57:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-24 00:57:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 384. [2024-11-24 00:57:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 339 states have (on average 1.3893805309734513) internal successors, (471), 341 states have internal predecessors, (471), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:57:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 551 transitions. [2024-11-24 00:57:53,332 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 551 transitions. Word has length 117 [2024-11-24 00:57:53,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:53,332 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 551 transitions. [2024-11-24 00:57:53,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 551 transitions. [2024-11-24 00:57:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:57:53,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:53,334 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:53,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:57:53,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:53,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:53,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1552103804, now seen corresponding path program 1 times [2024-11-24 00:57:53,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:53,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540836663] [2024-11-24 00:57:53,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:53,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:53,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540836663] [2024-11-24 00:57:53,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540836663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:53,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:53,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:57:53,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342581811] [2024-11-24 00:57:53,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:53,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:57:53,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:53,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:57:53,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:53,801 INFO L87 Difference]: Start difference. First operand 384 states and 551 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:53,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:53,981 INFO L93 Difference]: Finished difference Result 940 states and 1348 transitions. [2024-11-24 00:57:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:57:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-24 00:57:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:53,986 INFO L225 Difference]: With dead ends: 940 [2024-11-24 00:57:53,987 INFO L226 Difference]: Without dead ends: 559 [2024-11-24 00:57:53,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:57:53,988 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 114 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:53,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 990 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:53,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-24 00:57:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 409. [2024-11-24 00:57:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 364 states have (on average 1.3928571428571428) internal successors, (507), 366 states have internal predecessors, (507), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:57:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 587 transitions. [2024-11-24 00:57:54,036 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 587 transitions. Word has length 118 [2024-11-24 00:57:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:54,036 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 587 transitions. [2024-11-24 00:57:54,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 587 transitions. [2024-11-24 00:57:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:57:54,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:54,039 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:54,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:57:54,039 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:54,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1309316045, now seen corresponding path program 1 times [2024-11-24 00:57:54,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:54,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342902115] [2024-11-24 00:57:54,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:54,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:54,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:54,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342902115] [2024-11-24 00:57:54,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342902115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:54,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:54,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:54,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261221160] [2024-11-24 00:57:54,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:54,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:54,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:54,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:54,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:54,488 INFO L87 Difference]: Start difference. First operand 409 states and 587 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:54,625 INFO L93 Difference]: Finished difference Result 1027 states and 1470 transitions. [2024-11-24 00:57:54,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:57:54,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-24 00:57:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:54,630 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 00:57:54,630 INFO L226 Difference]: Without dead ends: 621 [2024-11-24 00:57:54,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:54,634 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 63 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:54,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 673 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:54,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-24 00:57:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 474. [2024-11-24 00:57:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 429 states have (on average 1.3986013986013985) internal successors, (600), 431 states have internal predecessors, (600), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:57:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 680 transitions. [2024-11-24 00:57:54,693 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 680 transitions. Word has length 118 [2024-11-24 00:57:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:54,693 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 680 transitions. [2024-11-24 00:57:54,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 680 transitions. [2024-11-24 00:57:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:57:54,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:54,698 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:54,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:57:54,698 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:54,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:54,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1732196226, now seen corresponding path program 1 times [2024-11-24 00:57:54,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:54,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458064987] [2024-11-24 00:57:54,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:54,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:55,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:55,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458064987] [2024-11-24 00:57:55,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458064987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:55,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:55,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:55,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326333235] [2024-11-24 00:57:55,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:55,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:55,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:55,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:55,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:55,116 INFO L87 Difference]: Start difference. First operand 474 states and 680 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:55,250 INFO L93 Difference]: Finished difference Result 1088 states and 1553 transitions. [2024-11-24 00:57:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:57:55,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-24 00:57:55,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:55,255 INFO L225 Difference]: With dead ends: 1088 [2024-11-24 00:57:55,255 INFO L226 Difference]: Without dead ends: 617 [2024-11-24 00:57:55,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:55,258 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 70 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:55,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 657 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:55,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-24 00:57:55,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 473. [2024-11-24 00:57:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 428 states have (on average 1.394859813084112) internal successors, (597), 430 states have internal predecessors, (597), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:57:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 677 transitions. [2024-11-24 00:57:55,311 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 677 transitions. Word has length 118 [2024-11-24 00:57:55,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:55,312 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 677 transitions. [2024-11-24 00:57:55,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 677 transitions. [2024-11-24 00:57:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:57:55,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:55,315 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:55,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:57:55,315 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:55,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:55,315 INFO L85 PathProgramCache]: Analyzing trace with hash 914547776, now seen corresponding path program 1 times [2024-11-24 00:57:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:55,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773203026] [2024-11-24 00:57:55,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:55,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773203026] [2024-11-24 00:57:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773203026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:55,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:55,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:57:55,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675214035] [2024-11-24 00:57:55,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:55,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:57:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:55,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:57:55,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:57:55,835 INFO L87 Difference]: Start difference. First operand 473 states and 677 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:56,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:56,084 INFO L93 Difference]: Finished difference Result 954 states and 1365 transitions. [2024-11-24 00:57:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:57:56,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-24 00:57:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:56,089 INFO L225 Difference]: With dead ends: 954 [2024-11-24 00:57:56,090 INFO L226 Difference]: Without dead ends: 714 [2024-11-24 00:57:56,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:57:56,091 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 182 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:56,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 758 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:57:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-24 00:57:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 684. [2024-11-24 00:57:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 617 states have (on average 1.3889789303079416) internal successors, (857), 620 states have internal predecessors, (857), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:57:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 977 transitions. [2024-11-24 00:57:56,168 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 977 transitions. Word has length 118 [2024-11-24 00:57:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:56,169 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 977 transitions. [2024-11-24 00:57:56,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 977 transitions. [2024-11-24 00:57:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:57:56,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:56,172 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:56,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:57:56,172 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:56,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:56,173 INFO L85 PathProgramCache]: Analyzing trace with hash -364021403, now seen corresponding path program 1 times [2024-11-24 00:57:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:56,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106077278] [2024-11-24 00:57:56,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:56,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:56,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106077278] [2024-11-24 00:57:56,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106077278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:56,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:56,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:56,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875294650] [2024-11-24 00:57:56,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:56,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:56,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:56,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:56,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:56,530 INFO L87 Difference]: Start difference. First operand 684 states and 977 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:56,658 INFO L93 Difference]: Finished difference Result 1442 states and 2053 transitions. [2024-11-24 00:57:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:57:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-24 00:57:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:56,664 INFO L225 Difference]: With dead ends: 1442 [2024-11-24 00:57:56,664 INFO L226 Difference]: Without dead ends: 761 [2024-11-24 00:57:56,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:56,666 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 73 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:56,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 667 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:56,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-24 00:57:56,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 643. [2024-11-24 00:57:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 576 states have (on average 1.3871527777777777) internal successors, (799), 579 states have internal predecessors, (799), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:57:56,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 919 transitions. [2024-11-24 00:57:56,728 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 919 transitions. Word has length 119 [2024-11-24 00:57:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:56,729 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 919 transitions. [2024-11-24 00:57:56,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 919 transitions. [2024-11-24 00:57:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:57:56,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:56,731 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:56,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:57:56,732 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:56,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2023782025, now seen corresponding path program 1 times [2024-11-24 00:57:56,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947343812] [2024-11-24 00:57:56,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:56,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:57,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:57,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947343812] [2024-11-24 00:57:57,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947343812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:57,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:57,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:57,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919616798] [2024-11-24 00:57:57,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:57,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:57,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:57,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:57,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:57,048 INFO L87 Difference]: Start difference. First operand 643 states and 919 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:57,170 INFO L93 Difference]: Finished difference Result 1098 states and 1564 transitions. [2024-11-24 00:57:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:57:57,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-24 00:57:57,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:57,174 INFO L225 Difference]: With dead ends: 1098 [2024-11-24 00:57:57,174 INFO L226 Difference]: Without dead ends: 655 [2024-11-24 00:57:57,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:57,177 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 68 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:57,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 741 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-24 00:57:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 616. [2024-11-24 00:57:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 549 states have (on average 1.3825136612021858) internal successors, (759), 552 states have internal predecessors, (759), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:57:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 879 transitions. [2024-11-24 00:57:57,228 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 879 transitions. Word has length 119 [2024-11-24 00:57:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:57,228 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 879 transitions. [2024-11-24 00:57:57,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 879 transitions. [2024-11-24 00:57:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:57:57,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:57,230 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:57,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:57:57,231 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:57,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:57,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1945076014, now seen corresponding path program 1 times [2024-11-24 00:57:57,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:57,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817472507] [2024-11-24 00:57:57,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:57,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:58,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:58,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817472507] [2024-11-24 00:57:58,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817472507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:58,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:58,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:57:58,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875876017] [2024-11-24 00:57:58,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:58,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:57:58,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:58,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:57:58,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:57:58,018 INFO L87 Difference]: Start difference. First operand 616 states and 879 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:58,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:58,763 INFO L93 Difference]: Finished difference Result 1344 states and 1910 transitions. [2024-11-24 00:57:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:57:58,764 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-24 00:57:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:58,767 INFO L225 Difference]: With dead ends: 1344 [2024-11-24 00:57:58,768 INFO L226 Difference]: Without dead ends: 731 [2024-11-24 00:57:58,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:57:58,770 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 407 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:58,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1427 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:57:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-24 00:57:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 716. [2024-11-24 00:57:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 637 states have (on average 1.3767660910518054) internal successors, (877), 641 states have internal predecessors, (877), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:57:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2024-11-24 00:57:58,833 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 119 [2024-11-24 00:57:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:58,834 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2024-11-24 00:57:58,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:58,835 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2024-11-24 00:57:58,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:57:58,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:58,837 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:58,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:57:58,838 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:58,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:58,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1799398302, now seen corresponding path program 1 times [2024-11-24 00:57:58,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:58,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670426628] [2024-11-24 00:57:58,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:59,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:59,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670426628] [2024-11-24 00:57:59,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670426628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:59,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:59,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:59,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976564482] [2024-11-24 00:57:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:59,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:59,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:59,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:59,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:59,251 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:59,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:59,392 INFO L93 Difference]: Finished difference Result 1467 states and 2081 transitions. [2024-11-24 00:57:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:57:59,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-24 00:57:59,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:59,396 INFO L225 Difference]: With dead ends: 1467 [2024-11-24 00:57:59,397 INFO L226 Difference]: Without dead ends: 754 [2024-11-24 00:57:59,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:57:59,399 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 62 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:59,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 581 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:57:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-24 00:57:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 716. [2024-11-24 00:57:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 637 states have (on average 1.3642072213500784) internal successors, (869), 641 states have internal predecessors, (869), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:57:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1009 transitions. [2024-11-24 00:57:59,462 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1009 transitions. Word has length 119 [2024-11-24 00:57:59,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:59,462 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1009 transitions. [2024-11-24 00:57:59,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:57:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1009 transitions. [2024-11-24 00:57:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:57:59,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:59,464 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:57:59,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:57:59,464 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:59,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:59,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1484451744, now seen corresponding path program 1 times [2024-11-24 00:57:59,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:59,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102891973] [2024-11-24 00:57:59,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:57:59,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:59,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102891973] [2024-11-24 00:57:59,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102891973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:59,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:59,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:57:59,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84183663] [2024-11-24 00:57:59,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:59,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:57:59,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:59,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:57:59,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:57:59,827 INFO L87 Difference]: Start difference. First operand 716 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:00,022 INFO L93 Difference]: Finished difference Result 1262 states and 1776 transitions. [2024-11-24 00:58:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:00,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-24 00:58:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:00,030 INFO L225 Difference]: With dead ends: 1262 [2024-11-24 00:58:00,031 INFO L226 Difference]: Without dead ends: 817 [2024-11-24 00:58:00,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:00,033 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 249 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:00,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 697 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:58:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-11-24 00:58:00,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 807. [2024-11-24 00:58:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 714 states have (on average 1.3571428571428572) internal successors, (969), 718 states have internal predecessors, (969), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-24 00:58:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1133 transitions. [2024-11-24 00:58:00,109 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1133 transitions. Word has length 119 [2024-11-24 00:58:00,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:00,109 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1133 transitions. [2024-11-24 00:58:00,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1133 transitions. [2024-11-24 00:58:00,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:58:00,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:00,112 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:00,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:58:00,112 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:00,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash 829300942, now seen corresponding path program 1 times [2024-11-24 00:58:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:00,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706304631] [2024-11-24 00:58:00,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:00,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:01,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706304631] [2024-11-24 00:58:01,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706304631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:01,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:01,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:58:01,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992673983] [2024-11-24 00:58:01,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:01,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:58:01,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:01,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:58:01,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:01,307 INFO L87 Difference]: Start difference. First operand 807 states and 1133 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:02,857 INFO L93 Difference]: Finished difference Result 1752 states and 2457 transitions. [2024-11-24 00:58:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:58:02,858 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-24 00:58:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:02,865 INFO L225 Difference]: With dead ends: 1752 [2024-11-24 00:58:02,866 INFO L226 Difference]: Without dead ends: 948 [2024-11-24 00:58:02,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:58:02,869 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 433 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:02,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 2189 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:58:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-24 00:58:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 841. [2024-11-24 00:58:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 737 states have (on average 1.3541383989145184) internal successors, (998), 742 states have internal predecessors, (998), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-24 00:58:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1182 transitions. [2024-11-24 00:58:02,990 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1182 transitions. Word has length 119 [2024-11-24 00:58:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:02,991 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1182 transitions. [2024-11-24 00:58:02,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1182 transitions. [2024-11-24 00:58:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:58:02,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:02,994 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:02,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:58:02,994 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:02,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:02,995 INFO L85 PathProgramCache]: Analyzing trace with hash 751755826, now seen corresponding path program 1 times [2024-11-24 00:58:02,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:02,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912059726] [2024-11-24 00:58:02,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:02,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:03,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:03,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912059726] [2024-11-24 00:58:03,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912059726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:03,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:03,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:58:03,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309339037] [2024-11-24 00:58:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:03,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:58:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:03,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:58:03,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:58:03,618 INFO L87 Difference]: Start difference. First operand 841 states and 1182 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:04,210 INFO L93 Difference]: Finished difference Result 1739 states and 2434 transitions. [2024-11-24 00:58:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:58:04,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-24 00:58:04,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:04,216 INFO L225 Difference]: With dead ends: 1739 [2024-11-24 00:58:04,216 INFO L226 Difference]: Without dead ends: 944 [2024-11-24 00:58:04,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:04,219 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 378 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:04,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1075 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:58:04,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-24 00:58:04,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 851. [2024-11-24 00:58:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 747 states have (on average 1.3534136546184738) internal successors, (1011), 752 states have internal predecessors, (1011), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-24 00:58:04,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1195 transitions. [2024-11-24 00:58:04,307 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1195 transitions. Word has length 120 [2024-11-24 00:58:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:04,308 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1195 transitions. [2024-11-24 00:58:04,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1195 transitions. [2024-11-24 00:58:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:58:04,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:04,311 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:04,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:58:04,311 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:04,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2137959220, now seen corresponding path program 1 times [2024-11-24 00:58:04,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:04,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16358546] [2024-11-24 00:58:04,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:05,328 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:05,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:05,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16358546] [2024-11-24 00:58:05,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16358546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:05,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:58:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951819426] [2024-11-24 00:58:05,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:05,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:58:05,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:05,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:58:05,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:05,331 INFO L87 Difference]: Start difference. First operand 851 states and 1195 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:06,501 INFO L93 Difference]: Finished difference Result 1665 states and 2329 transitions. [2024-11-24 00:58:06,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:58:06,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-24 00:58:06,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:06,507 INFO L225 Difference]: With dead ends: 1665 [2024-11-24 00:58:06,507 INFO L226 Difference]: Without dead ends: 860 [2024-11-24 00:58:06,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:58:06,510 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 490 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:06,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1880 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:58:06,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-24 00:58:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 836. [2024-11-24 00:58:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 732 states have (on average 1.3524590163934427) internal successors, (990), 737 states have internal predecessors, (990), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-24 00:58:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1174 transitions. [2024-11-24 00:58:06,589 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1174 transitions. Word has length 120 [2024-11-24 00:58:06,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:06,589 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1174 transitions. [2024-11-24 00:58:06,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1174 transitions. [2024-11-24 00:58:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:58:06,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:06,593 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:06,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:58:06,593 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:06,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:06,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2118823200, now seen corresponding path program 1 times [2024-11-24 00:58:06,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:06,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477162818] [2024-11-24 00:58:06,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:06,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:07,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:07,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477162818] [2024-11-24 00:58:07,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477162818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:07,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:07,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:58:07,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723304323] [2024-11-24 00:58:07,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:07,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:58:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:07,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:58:07,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:58:07,127 INFO L87 Difference]: Start difference. First operand 836 states and 1174 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:07,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:07,519 INFO L93 Difference]: Finished difference Result 1508 states and 2115 transitions. [2024-11-24 00:58:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:58:07,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-24 00:58:07,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:07,525 INFO L225 Difference]: With dead ends: 1508 [2024-11-24 00:58:07,525 INFO L226 Difference]: Without dead ends: 1001 [2024-11-24 00:58:07,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:07,527 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 129 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:07,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1358 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:58:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-24 00:58:07,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 996. [2024-11-24 00:58:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 868 states have (on average 1.347926267281106) internal successors, (1170), 875 states have internal predecessors, (1170), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 00:58:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1394 transitions. [2024-11-24 00:58:07,642 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1394 transitions. Word has length 121 [2024-11-24 00:58:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:07,642 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1394 transitions. [2024-11-24 00:58:07,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1394 transitions. [2024-11-24 00:58:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:58:07,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:07,644 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:07,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:58:07,645 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:07,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:07,645 INFO L85 PathProgramCache]: Analyzing trace with hash -408783257, now seen corresponding path program 1 times [2024-11-24 00:58:07,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:07,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659675651] [2024-11-24 00:58:07,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:07,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:07,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:07,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659675651] [2024-11-24 00:58:07,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659675651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:07,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:07,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:07,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422767960] [2024-11-24 00:58:07,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:07,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:07,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:07,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:07,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:07,900 INFO L87 Difference]: Start difference. First operand 996 states and 1394 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:08,065 INFO L93 Difference]: Finished difference Result 1934 states and 2707 transitions. [2024-11-24 00:58:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:08,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-24 00:58:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:08,073 INFO L225 Difference]: With dead ends: 1934 [2024-11-24 00:58:08,073 INFO L226 Difference]: Without dead ends: 984 [2024-11-24 00:58:08,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:08,076 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 55 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:08,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 583 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:58:08,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-24 00:58:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 982. [2024-11-24 00:58:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 854 states have (on average 1.345433255269321) internal successors, (1149), 861 states have internal predecessors, (1149), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 00:58:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1373 transitions. [2024-11-24 00:58:08,171 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1373 transitions. Word has length 121 [2024-11-24 00:58:08,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:08,172 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1373 transitions. [2024-11-24 00:58:08,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:08,172 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1373 transitions. [2024-11-24 00:58:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:58:08,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:08,175 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:08,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:58:08,176 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:08,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -8353378, now seen corresponding path program 1 times [2024-11-24 00:58:08,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:08,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450769356] [2024-11-24 00:58:08,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:08,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:08,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:08,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450769356] [2024-11-24 00:58:08,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450769356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:08,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:08,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:08,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378306831] [2024-11-24 00:58:08,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:08,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:08,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:08,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:08,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:08,482 INFO L87 Difference]: Start difference. First operand 982 states and 1373 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:08,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:08,654 INFO L93 Difference]: Finished difference Result 1641 states and 2292 transitions. [2024-11-24 00:58:08,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:08,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-24 00:58:08,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:08,660 INFO L225 Difference]: With dead ends: 1641 [2024-11-24 00:58:08,660 INFO L226 Difference]: Without dead ends: 982 [2024-11-24 00:58:08,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:08,664 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 66 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:08,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 571 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:58:08,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-11-24 00:58:08,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 980. [2024-11-24 00:58:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 852 states have (on average 1.3392018779342723) internal successors, (1141), 859 states have internal predecessors, (1141), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 00:58:08,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1365 transitions. [2024-11-24 00:58:08,757 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1365 transitions. Word has length 121 [2024-11-24 00:58:08,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:08,758 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1365 transitions. [2024-11-24 00:58:08,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1365 transitions. [2024-11-24 00:58:08,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:58:08,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:08,760 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:08,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:58:08,760 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:08,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:08,761 INFO L85 PathProgramCache]: Analyzing trace with hash 417061139, now seen corresponding path program 1 times [2024-11-24 00:58:08,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:08,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026872562] [2024-11-24 00:58:08,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:08,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:09,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:09,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026872562] [2024-11-24 00:58:09,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026872562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:09,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:09,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:58:09,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336712438] [2024-11-24 00:58:09,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:09,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:58:09,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:09,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:58:09,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:09,186 INFO L87 Difference]: Start difference. First operand 980 states and 1365 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:09,659 INFO L93 Difference]: Finished difference Result 1939 states and 2691 transitions. [2024-11-24 00:58:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:58:09,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-24 00:58:09,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:09,668 INFO L225 Difference]: With dead ends: 1939 [2024-11-24 00:58:09,670 INFO L226 Difference]: Without dead ends: 1005 [2024-11-24 00:58:09,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:58:09,673 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 202 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:09,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1306 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:58:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-24 00:58:09,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 994. [2024-11-24 00:58:09,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 866 states have (on average 1.3302540415704387) internal successors, (1152), 873 states have internal predecessors, (1152), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 00:58:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1376 transitions. [2024-11-24 00:58:09,804 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1376 transitions. Word has length 121 [2024-11-24 00:58:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:09,804 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1376 transitions. [2024-11-24 00:58:09,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:09,805 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1376 transitions. [2024-11-24 00:58:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:58:09,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:09,806 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:09,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:58:09,807 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:09,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash 635915857, now seen corresponding path program 1 times [2024-11-24 00:58:09,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:09,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839945826] [2024-11-24 00:58:09,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:10,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:10,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839945826] [2024-11-24 00:58:10,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839945826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:10,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:10,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724923873] [2024-11-24 00:58:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:10,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:10,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:10,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:10,053 INFO L87 Difference]: Start difference. First operand 994 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:10,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:10,200 INFO L93 Difference]: Finished difference Result 1932 states and 2670 transitions. [2024-11-24 00:58:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:10,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-24 00:58:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:10,207 INFO L225 Difference]: With dead ends: 1932 [2024-11-24 00:58:10,208 INFO L226 Difference]: Without dead ends: 984 [2024-11-24 00:58:10,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:10,211 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 50 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:10,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 729 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:58:10,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-24 00:58:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 982. [2024-11-24 00:58:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 854 states have (on average 1.3278688524590163) internal successors, (1134), 861 states have internal predecessors, (1134), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 00:58:10,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1358 transitions. [2024-11-24 00:58:10,304 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1358 transitions. Word has length 121 [2024-11-24 00:58:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:10,305 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1358 transitions. [2024-11-24 00:58:10,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1358 transitions. [2024-11-24 00:58:10,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:58:10,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:10,307 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:10,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:58:10,307 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:10,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1095319066, now seen corresponding path program 1 times [2024-11-24 00:58:10,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:10,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540274599] [2024-11-24 00:58:10,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:10,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:10,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:10,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540274599] [2024-11-24 00:58:10,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540274599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:10,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:10,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:58:10,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108135120] [2024-11-24 00:58:10,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:10,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:58:10,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:10,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:58:10,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:58:10,800 INFO L87 Difference]: Start difference. First operand 982 states and 1358 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:11,152 INFO L93 Difference]: Finished difference Result 1646 states and 2266 transitions. [2024-11-24 00:58:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:58:11,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-24 00:58:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:11,158 INFO L225 Difference]: With dead ends: 1646 [2024-11-24 00:58:11,159 INFO L226 Difference]: Without dead ends: 987 [2024-11-24 00:58:11,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:11,161 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 126 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:11,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 788 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:58:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-24 00:58:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 935. [2024-11-24 00:58:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 815 states have (on average 1.3214723926380367) internal successors, (1077), 821 states have internal predecessors, (1077), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1281 transitions. [2024-11-24 00:58:11,259 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1281 transitions. Word has length 122 [2024-11-24 00:58:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:11,260 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1281 transitions. [2024-11-24 00:58:11,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1281 transitions. [2024-11-24 00:58:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:58:11,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:11,263 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:11,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:58:11,263 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:11,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:11,263 INFO L85 PathProgramCache]: Analyzing trace with hash -240964163, now seen corresponding path program 1 times [2024-11-24 00:58:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141879424] [2024-11-24 00:58:11,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:11,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:12,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141879424] [2024-11-24 00:58:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141879424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:12,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:12,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:58:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921821920] [2024-11-24 00:58:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:12,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:58:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:12,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:58:12,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:12,036 INFO L87 Difference]: Start difference. First operand 935 states and 1281 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:12,546 INFO L93 Difference]: Finished difference Result 2039 states and 2783 transitions. [2024-11-24 00:58:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:58:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-24 00:58:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:12,552 INFO L225 Difference]: With dead ends: 2039 [2024-11-24 00:58:12,553 INFO L226 Difference]: Without dead ends: 1107 [2024-11-24 00:58:12,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:58:12,555 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 478 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:12,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 718 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:58:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2024-11-24 00:58:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 950. [2024-11-24 00:58:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 830 states have (on average 1.319277108433735) internal successors, (1095), 836 states have internal predecessors, (1095), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1299 transitions. [2024-11-24 00:58:12,650 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1299 transitions. Word has length 122 [2024-11-24 00:58:12,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:12,651 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1299 transitions. [2024-11-24 00:58:12,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1299 transitions. [2024-11-24 00:58:12,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:58:12,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:12,654 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:12,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:58:12,655 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:12,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:12,657 INFO L85 PathProgramCache]: Analyzing trace with hash -942028741, now seen corresponding path program 1 times [2024-11-24 00:58:12,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:12,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233140974] [2024-11-24 00:58:12,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:12,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:13,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:13,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233140974] [2024-11-24 00:58:13,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233140974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:13,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:13,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:58:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081650617] [2024-11-24 00:58:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:13,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:58:13,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:13,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:58:13,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:13,548 INFO L87 Difference]: Start difference. First operand 950 states and 1299 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:14,215 INFO L93 Difference]: Finished difference Result 2104 states and 2870 transitions. [2024-11-24 00:58:14,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:58:14,216 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-24 00:58:14,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:14,221 INFO L225 Difference]: With dead ends: 2104 [2024-11-24 00:58:14,222 INFO L226 Difference]: Without dead ends: 1157 [2024-11-24 00:58:14,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:58:14,224 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 409 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:14,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1807 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:58:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-24 00:58:14,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 954. [2024-11-24 00:58:14,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 834 states have (on average 1.3177458033573142) internal successors, (1099), 840 states have internal predecessors, (1099), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:14,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1303 transitions. [2024-11-24 00:58:14,318 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1303 transitions. Word has length 122 [2024-11-24 00:58:14,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:14,318 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1303 transitions. [2024-11-24 00:58:14,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1303 transitions. [2024-11-24 00:58:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:58:14,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:14,321 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:14,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:58:14,321 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:14,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:14,322 INFO L85 PathProgramCache]: Analyzing trace with hash 460635711, now seen corresponding path program 1 times [2024-11-24 00:58:14,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:14,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724867455] [2024-11-24 00:58:14,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:14,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:15,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:15,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724867455] [2024-11-24 00:58:15,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724867455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:15,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:15,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:58:15,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738455929] [2024-11-24 00:58:15,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:15,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:58:15,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:15,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:58:15,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:58:15,494 INFO L87 Difference]: Start difference. First operand 954 states and 1303 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:16,895 INFO L93 Difference]: Finished difference Result 2167 states and 2956 transitions. [2024-11-24 00:58:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:58:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-24 00:58:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:16,901 INFO L225 Difference]: With dead ends: 2167 [2024-11-24 00:58:16,902 INFO L226 Difference]: Without dead ends: 1216 [2024-11-24 00:58:16,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:58:16,905 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 389 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:16,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1975 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:58:16,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-24 00:58:17,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 962. [2024-11-24 00:58:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 842 states have (on average 1.314726840855107) internal successors, (1107), 848 states have internal predecessors, (1107), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1311 transitions. [2024-11-24 00:58:17,011 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1311 transitions. Word has length 122 [2024-11-24 00:58:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:17,014 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1311 transitions. [2024-11-24 00:58:17,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1311 transitions. [2024-11-24 00:58:17,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 00:58:17,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:17,016 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:17,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:58:17,016 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:17,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash -240428867, now seen corresponding path program 1 times [2024-11-24 00:58:17,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:17,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830764440] [2024-11-24 00:58:17,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:17,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:17,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:17,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830764440] [2024-11-24 00:58:17,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830764440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:17,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:17,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:58:17,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587614672] [2024-11-24 00:58:17,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:17,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:58:17,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:17,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:58:17,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:17,703 INFO L87 Difference]: Start difference. First operand 962 states and 1311 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:18,552 INFO L93 Difference]: Finished difference Result 2163 states and 2946 transitions. [2024-11-24 00:58:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:58:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-24 00:58:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:18,561 INFO L225 Difference]: With dead ends: 2163 [2024-11-24 00:58:18,561 INFO L226 Difference]: Without dead ends: 1204 [2024-11-24 00:58:18,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:58:18,569 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 346 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:18,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1281 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:58:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-24 00:58:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 950. [2024-11-24 00:58:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 830 states have (on average 1.3120481927710843) internal successors, (1089), 836 states have internal predecessors, (1089), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1293 transitions. [2024-11-24 00:58:18,671 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1293 transitions. Word has length 122 [2024-11-24 00:58:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:18,672 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1293 transitions. [2024-11-24 00:58:18,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1293 transitions. [2024-11-24 00:58:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 00:58:18,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:18,674 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:18,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:58:18,674 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:18,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1858872006, now seen corresponding path program 1 times [2024-11-24 00:58:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:18,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684109939] [2024-11-24 00:58:18,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:18,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684109939] [2024-11-24 00:58:19,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684109939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:19,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:19,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:58:19,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891940512] [2024-11-24 00:58:19,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:19,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:58:19,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:19,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:58:19,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:58:19,588 INFO L87 Difference]: Start difference. First operand 950 states and 1293 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:20,190 INFO L93 Difference]: Finished difference Result 1616 states and 2205 transitions. [2024-11-24 00:58:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:58:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-24 00:58:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:20,195 INFO L225 Difference]: With dead ends: 1616 [2024-11-24 00:58:20,196 INFO L226 Difference]: Without dead ends: 961 [2024-11-24 00:58:20,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:58:20,198 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 185 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:20,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1245 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:58:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-24 00:58:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 959. [2024-11-24 00:58:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 839 states have (on average 1.3087008343265794) internal successors, (1098), 845 states have internal predecessors, (1098), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1302 transitions. [2024-11-24 00:58:20,308 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1302 transitions. Word has length 124 [2024-11-24 00:58:20,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:20,309 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1302 transitions. [2024-11-24 00:58:20,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1302 transitions. [2024-11-24 00:58:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 00:58:20,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:20,311 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:20,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:58:20,311 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:20,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1458442127, now seen corresponding path program 1 times [2024-11-24 00:58:20,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:20,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267889697] [2024-11-24 00:58:20,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:20,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:20,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:20,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267889697] [2024-11-24 00:58:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267889697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:20,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:20,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:20,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619199377] [2024-11-24 00:58:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:20,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:20,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:20,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:20,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:20,534 INFO L87 Difference]: Start difference. First operand 959 states and 1302 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:20,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:20,712 INFO L93 Difference]: Finished difference Result 1612 states and 2192 transitions. [2024-11-24 00:58:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-24 00:58:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:20,717 INFO L225 Difference]: With dead ends: 1612 [2024-11-24 00:58:20,718 INFO L226 Difference]: Without dead ends: 948 [2024-11-24 00:58:20,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:20,720 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 47 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:20,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 701 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:58:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-24 00:58:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 944. [2024-11-24 00:58:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 824 states have (on average 1.3033980582524272) internal successors, (1074), 830 states have internal predecessors, (1074), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1278 transitions. [2024-11-24 00:58:20,822 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1278 transitions. Word has length 124 [2024-11-24 00:58:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:20,823 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1278 transitions. [2024-11-24 00:58:20,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1278 transitions. [2024-11-24 00:58:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 00:58:20,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:20,825 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:20,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:58:20,825 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:20,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:20,825 INFO L85 PathProgramCache]: Analyzing trace with hash 570259053, now seen corresponding path program 1 times [2024-11-24 00:58:20,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:20,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502496129] [2024-11-24 00:58:20,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:20,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-24 00:58:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:21,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502496129] [2024-11-24 00:58:21,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502496129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:58:21,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632123800] [2024-11-24 00:58:21,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:21,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:58:21,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:58:21,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:58:21,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:58:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:21,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:58:21,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:58:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:21,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:58:21,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632123800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:21,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:58:21,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 00:58:21,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045270700] [2024-11-24 00:58:21,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:21,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:21,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:21,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:21,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:21,422 INFO L87 Difference]: Start difference. First operand 944 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:21,610 INFO L93 Difference]: Finished difference Result 1915 states and 2593 transitions. [2024-11-24 00:58:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:21,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-24 00:58:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:21,616 INFO L225 Difference]: With dead ends: 1915 [2024-11-24 00:58:21,617 INFO L226 Difference]: Without dead ends: 974 [2024-11-24 00:58:21,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:21,620 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:21,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:58:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-11-24 00:58:21,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2024-11-24 00:58:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 854 states have (on average 1.2927400468384076) internal successors, (1104), 860 states have internal predecessors, (1104), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1308 transitions. [2024-11-24 00:58:21,762 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1308 transitions. Word has length 124 [2024-11-24 00:58:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:21,763 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1308 transitions. [2024-11-24 00:58:21,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1308 transitions. [2024-11-24 00:58:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-24 00:58:21,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:21,765 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:21,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:58:21,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:58:21,966 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:21,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1111849902, now seen corresponding path program 1 times [2024-11-24 00:58:21,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:21,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042511571] [2024-11-24 00:58:21,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:21,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:22,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042511571] [2024-11-24 00:58:22,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042511571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:22,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:22,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:22,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168620585] [2024-11-24 00:58:22,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:22,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:22,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:22,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:22,175 INFO L87 Difference]: Start difference. First operand 974 states and 1308 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:22,334 INFO L93 Difference]: Finished difference Result 1922 states and 2579 transitions. [2024-11-24 00:58:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:58:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-24 00:58:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:22,340 INFO L225 Difference]: With dead ends: 1922 [2024-11-24 00:58:22,340 INFO L226 Difference]: Without dead ends: 951 [2024-11-24 00:58:22,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:22,343 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 39 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:22,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 581 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:58:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-24 00:58:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 947. [2024-11-24 00:58:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 827 states have (on average 1.2817412333736398) internal successors, (1060), 833 states have internal predecessors, (1060), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1264 transitions. [2024-11-24 00:58:22,444 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1264 transitions. Word has length 126 [2024-11-24 00:58:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:22,445 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1264 transitions. [2024-11-24 00:58:22,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1264 transitions. [2024-11-24 00:58:22,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:58:22,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:22,447 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:22,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:58:22,447 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:22,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:22,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1911816657, now seen corresponding path program 1 times [2024-11-24 00:58:22,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:22,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818853715] [2024-11-24 00:58:22,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:22,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:23,956 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:23,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:23,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818853715] [2024-11-24 00:58:23,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818853715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:23,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:23,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:58:23,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278051544] [2024-11-24 00:58:23,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:23,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:58:23,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:23,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:58:23,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:58:23,959 INFO L87 Difference]: Start difference. First operand 947 states and 1264 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:25,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:25,250 INFO L93 Difference]: Finished difference Result 1874 states and 2510 transitions. [2024-11-24 00:58:25,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:58:25,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-24 00:58:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:25,262 INFO L225 Difference]: With dead ends: 1874 [2024-11-24 00:58:25,262 INFO L226 Difference]: Without dead ends: 1216 [2024-11-24 00:58:25,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:58:25,265 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 227 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:25,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1799 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:58:25,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-24 00:58:25,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1010. [2024-11-24 00:58:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 890 states have (on average 1.2797752808988765) internal successors, (1139), 896 states have internal predecessors, (1139), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:25,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1343 transitions. [2024-11-24 00:58:25,386 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1343 transitions. Word has length 128 [2024-11-24 00:58:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:25,387 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1343 transitions. [2024-11-24 00:58:25,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:25,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1343 transitions. [2024-11-24 00:58:25,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:58:25,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:25,389 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:25,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:58:25,390 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:25,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:25,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1703092269, now seen corresponding path program 1 times [2024-11-24 00:58:25,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:25,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588721987] [2024-11-24 00:58:25,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:25,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:25,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:25,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588721987] [2024-11-24 00:58:25,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588721987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:25,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:25,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:58:25,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955550099] [2024-11-24 00:58:25,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:25,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:58:25,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:25,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:58:25,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:58:25,734 INFO L87 Difference]: Start difference. First operand 1010 states and 1343 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:26,076 INFO L93 Difference]: Finished difference Result 1847 states and 2468 transitions. [2024-11-24 00:58:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:58:26,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-24 00:58:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:26,083 INFO L225 Difference]: With dead ends: 1847 [2024-11-24 00:58:26,083 INFO L226 Difference]: Without dead ends: 1126 [2024-11-24 00:58:26,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:26,086 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 389 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:26,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 791 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:58:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-24 00:58:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1010. [2024-11-24 00:58:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 890 states have (on average 1.2775280898876404) internal successors, (1137), 896 states have internal predecessors, (1137), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 00:58:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1341 transitions. [2024-11-24 00:58:26,198 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1341 transitions. Word has length 128 [2024-11-24 00:58:26,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:26,198 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1341 transitions. [2024-11-24 00:58:26,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:26,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1341 transitions. [2024-11-24 00:58:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:58:26,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:26,200 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:26,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:58:26,201 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:26,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:26,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1839430099, now seen corresponding path program 1 times [2024-11-24 00:58:26,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:26,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335179463] [2024-11-24 00:58:26,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:26,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 00:58:26,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:26,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335179463] [2024-11-24 00:58:26,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335179463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:26,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:26,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:58:26,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126324670] [2024-11-24 00:58:26,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:26,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:58:26,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:26,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:58:26,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:26,601 INFO L87 Difference]: Start difference. First operand 1010 states and 1341 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:26,998 INFO L93 Difference]: Finished difference Result 1895 states and 2530 transitions. [2024-11-24 00:58:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:58:26,999 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-24 00:58:26,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:27,008 INFO L225 Difference]: With dead ends: 1895 [2024-11-24 00:58:27,008 INFO L226 Difference]: Without dead ends: 1174 [2024-11-24 00:58:27,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:58:27,014 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 310 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:27,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 890 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:58:27,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-24 00:58:27,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 851. [2024-11-24 00:58:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 751 states have (on average 1.2756324900133156) internal successors, (958), 755 states have internal predecessors, (958), 84 states have call successors, (84), 15 states have call predecessors, (84), 15 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 00:58:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1126 transitions. [2024-11-24 00:58:27,117 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1126 transitions. Word has length 128 [2024-11-24 00:58:27,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:27,119 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1126 transitions. [2024-11-24 00:58:27,120 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 00:58:27,120 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1126 transitions. [2024-11-24 00:58:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:58:27,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:27,122 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:58:27,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:58:27,123 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:27,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1775478827, now seen corresponding path program 1 times [2024-11-24 00:58:27,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:27,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083966411] [2024-11-24 00:58:27,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:27,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:56,053 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:59:18,405 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:59:34,562 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:59:50,731 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:00:07,097 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:00:32,805 WARN L286 SmtUtils]: Spent 24.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:00:57,163 WARN L286 SmtUtils]: Spent 24.35s on a formula simplification. DAG size of input: 32 DAG size of output: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:01:25,360 WARN L286 SmtUtils]: Spent 28.20s on a formula simplification. DAG size of input: 42 DAG size of output: 40 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:01:33,756 WARN L286 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:01:42,931 WARN L286 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:02:01,023 WARN L286 SmtUtils]: Spent 18.09s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:02:25,068 WARN L286 SmtUtils]: Spent 24.04s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:02:35,811 WARN L286 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:02:49,755 WARN L286 SmtUtils]: Spent 10.58s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:03:14,275 WARN L286 SmtUtils]: Spent 24.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:03:36,922 WARN L286 SmtUtils]: Spent 22.64s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:04:08,946 WARN L286 SmtUtils]: Spent 32.02s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:04:41,015 WARN L286 SmtUtils]: Spent 32.02s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:04:49,409 WARN L286 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:08:34,340 WARN L286 SmtUtils]: Spent 3.72m on a formula simplification. DAG size of input: 125 DAG size of output: 124 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:08:48,981 WARN L286 SmtUtils]: Spent 12.09s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:09:02,676 WARN L286 SmtUtils]: Spent 13.27s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:09:14,182 WARN L286 SmtUtils]: Spent 11.51s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:09:44,230 WARN L286 SmtUtils]: Spent 24.02s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:10:16,416 WARN L286 SmtUtils]: Spent 32.02s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:10:39,366 WARN L286 SmtUtils]: Spent 15.67s on a formula simplification. DAG size of input: 104 DAG size of output: 98 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:10:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 51 proven. 30 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-24 01:10:45,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:45,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083966411] [2024-11-24 01:10:45,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083966411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:45,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592625955] [2024-11-24 01:10:45,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:45,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:45,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:45,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:45,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b59583-7b0b-4574-9901-b92c80bcde75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:10:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:46,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-24 01:10:46,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:53,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-24 01:11:00,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-24 01:11:08,529 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-11-24 01:11:08,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2024-11-24 01:11:11,373 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-24 01:11:11,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 100 [2024-11-24 01:11:11,460 INFO L349 Elim1Store]: treesize reduction 56, result has 13.8 percent of original size [2024-11-24 01:11:11,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 117 [2024-11-24 01:11:11,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 15 [2024-11-24 01:11:31,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 38 [2024-11-24 01:11:32,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-11-24 01:11:32,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-24 01:11:32,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:11:32,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 22 [2024-11-24 01:11:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 01:11:33,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:12:25,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592625955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:12:25,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:12:25,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 34] total 58 [2024-11-24 01:12:25,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937182137] [2024-11-24 01:12:25,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:12:25,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-24 01:12:25,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:25,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-24 01:12:25,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=762, Invalid=5074, Unknown=16, NotChecked=0, Total=5852 [2024-11-24 01:12:25,181 INFO L87 Difference]: Start difference. First operand 851 states and 1126 transitions. Second operand has 58 states, 51 states have (on average 3.019607843137255) internal successors, (154), 50 states have internal predecessors, (154), 10 states have call successors, (24), 6 states have call predecessors, (24), 8 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-11-24 01:12:33,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]