./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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 50c37bde9278eab1809caec3e26685a471aa2f6bca248c9ca7684bcb902cbec2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:53:37,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:53:37,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:53:37,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:53:37,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:53:37,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:53:37,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:53:37,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:53:37,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:53:37,501 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:53:37,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:53:37,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:53:37,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:53:37,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:53:37,502 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:53:37,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:53:37,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:53:37,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:53:37,503 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:53:37,504 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:37,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:53:37,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:53:37,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:37,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:53:37,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:53:37,505 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:53:37,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:53:37,507 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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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 -> 50c37bde9278eab1809caec3e26685a471aa2f6bca248c9ca7684bcb902cbec2 [2024-11-23 22:53:37,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:53:37,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:53:37,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:53:37,857 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:53:37,858 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:53:37,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i [2024-11-23 22:53:40,904 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/61130e232/0638fcc4c027457ca6a7371859adc6ed/FLAG9a9bd61d0 [2024-11-23 22:53:41,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:53:41,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i [2024-11-23 22:53:41,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/61130e232/0638fcc4c027457ca6a7371859adc6ed/FLAG9a9bd61d0 [2024-11-23 22:53:41,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/61130e232/0638fcc4c027457ca6a7371859adc6ed [2024-11-23 22:53:41,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:53:41,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:53:41,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:53:41,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:53:41,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:53:41,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:41,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613a7dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41, skipping insertion in model container [2024-11-23 22:53:41,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:41,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:53:41,731 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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i[916,929] [2024-11-23 22:53:41,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:53:41,835 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:53:41,847 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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i[916,929] [2024-11-23 22:53:41,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:53:41,918 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:53:41,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41 WrapperNode [2024-11-23 22:53:41,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:53:41,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:53:41,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:53:41,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:53:41,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:41,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,022 INFO L138 Inliner]: procedures = 29, calls = 141, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-11-23 22:53:42,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:53:42,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:53:42,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:53:42,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:53:42,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,089 INFO L175 MemorySlicer]: Split 115 memory accesses to 5 slices as follows [2, 40, 21, 9, 43]. 37 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 2, 1, 2]. The 15 writes are split as follows [0, 9, 2, 2, 2]. [2024-11-23 22:53:42,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,129 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:53:42,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:53:42,160 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:53:42,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:53:42,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (1/1) ... [2024-11-23 22:53:42,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:53:42,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:53:42,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:53:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:53:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-23 22:53:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-23 22:53:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-23 22:53:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-23 22:53:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-23 22:53:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 22:53:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 22:53:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 22:53:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 22:53:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 22:53:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-23 22:53:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-23 22:53:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-23 22:53:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-23 22:53:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-23 22:53:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 22:53:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 22:53:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 22:53:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-23 22:53:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:53:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:53:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:53:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:53:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:53:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:53:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 22:53:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:53:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:53:42,482 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:53:42,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:53:43,202 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-11-23 22:53:43,202 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:53:43,221 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:53:43,221 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:53:43,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:43 BoogieIcfgContainer [2024-11-23 22:53:43,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:53:43,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:53:43,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:53:43,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:53:43,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:53:41" (1/3) ... [2024-11-23 22:53:43,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6713c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:43, skipping insertion in model container [2024-11-23 22:53:43,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:41" (2/3) ... [2024-11-23 22:53:43,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6713c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:43, skipping insertion in model container [2024-11-23 22:53:43,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:43" (3/3) ... [2024-11-23 22:53:43,234 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-42.i [2024-11-23 22:53:43,252 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:53:43,254 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-42.i that has 2 procedures, 100 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:53:43,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:53:43,348 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;@50f7c612, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:53:43,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:53:43,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 87 states have internal predecessors, (122), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:53:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:43,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:43,370 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:43,370 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:43,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:43,381 INFO L85 PathProgramCache]: Analyzing trace with hash 437609435, now seen corresponding path program 1 times [2024-11-23 22:53:43,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:43,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540602756] [2024-11-23 22:53:43,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:43,820 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-23 22:53:43,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:43,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540602756] [2024-11-23 22:53:43,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540602756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:53:43,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962259866] [2024-11-23 22:53:43,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:43,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:53:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:53:43,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:53:43,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:53:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:44,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:53:44,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:53:44,183 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-23 22:53:44,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:53:44,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962259866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:44,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:53:44,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:53:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854934366] [2024-11-23 22:53:44,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:44,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:53:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:44,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:53:44,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:53:44,226 INFO L87 Difference]: Start difference. First operand has 100 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 87 states have internal predecessors, (122), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:53:44,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:44,270 INFO L93 Difference]: Finished difference Result 193 states and 293 transitions. [2024-11-23 22:53:44,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:53:44,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:53:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:44,280 INFO L225 Difference]: With dead ends: 193 [2024-11-23 22:53:44,281 INFO L226 Difference]: Without dead ends: 96 [2024-11-23 22:53:44,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:53:44,291 INFO L435 NwaCegarLoop]: 135 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, 135 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 [2024-11-23 22:53:44,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:53:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-23 22:53:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-23 22:53:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:53:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2024-11-23 22:53:44,328 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 103 [2024-11-23 22:53:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:44,328 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2024-11-23 22:53:44,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:53:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2024-11-23 22:53:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:44,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:44,331 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:44,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:53:44,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:53:44,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:44,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:44,533 INFO L85 PathProgramCache]: Analyzing trace with hash -383646895, now seen corresponding path program 1 times [2024-11-23 22:53:44,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:44,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869242707] [2024-11-23 22:53:44,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869242707] [2024-11-23 22:53:45,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869242707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:45,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:53:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710269083] [2024-11-23 22:53:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:45,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:53:45,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:45,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:53:45,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:53:45,704 INFO L87 Difference]: Start difference. First operand 96 states and 135 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:45,819 INFO L93 Difference]: Finished difference Result 189 states and 267 transitions. [2024-11-23 22:53:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:53:45,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:45,822 INFO L225 Difference]: With dead ends: 189 [2024-11-23 22:53:45,822 INFO L226 Difference]: Without dead ends: 96 [2024-11-23 22:53:45,823 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 [2024-11-23 22:53:45,824 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:45,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:53:45,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-23 22:53:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-23 22:53:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 83 states have internal predecessors, (112), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:53:45,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 134 transitions. [2024-11-23 22:53:45,846 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 134 transitions. Word has length 103 [2024-11-23 22:53:45,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:45,848 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 134 transitions. [2024-11-23 22:53:45,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:45,848 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 134 transitions. [2024-11-23 22:53:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:45,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:45,850 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:45,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:53:45,851 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:45,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:45,853 INFO L85 PathProgramCache]: Analyzing trace with hash -243098285, now seen corresponding path program 1 times [2024-11-23 22:53:45,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:45,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644386065] [2024-11-23 22:53:45,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:45,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:47,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:47,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644386065] [2024-11-23 22:53:47,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644386065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:47,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:47,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:53:47,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829881994] [2024-11-23 22:53:47,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:47,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:53:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:47,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:53:47,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:53:47,042 INFO L87 Difference]: Start difference. First operand 96 states and 134 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:47,174 INFO L93 Difference]: Finished difference Result 189 states and 265 transitions. [2024-11-23 22:53:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:53:47,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:47,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:47,180 INFO L225 Difference]: With dead ends: 189 [2024-11-23 22:53:47,180 INFO L226 Difference]: Without dead ends: 96 [2024-11-23 22:53:47,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:53:47,181 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 473 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 [2024-11-23 22:53:47,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 473 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:53:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-23 22:53:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-23 22:53:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 83 states have internal predecessors, (111), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:53:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2024-11-23 22:53:47,199 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 103 [2024-11-23 22:53:47,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:47,202 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2024-11-23 22:53:47,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:47,203 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2024-11-23 22:53:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:47,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:47,206 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:47,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:53:47,206 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:47,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:47,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1254215535, now seen corresponding path program 1 times [2024-11-23 22:53:47,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:47,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173894789] [2024-11-23 22:53:47,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:48,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:48,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173894789] [2024-11-23 22:53:48,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173894789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:48,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:53:48,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28484355] [2024-11-23 22:53:48,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:48,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:53:48,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:48,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:53:48,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:53:48,274 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:48,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:48,542 INFO L93 Difference]: Finished difference Result 220 states and 306 transitions. [2024-11-23 22:53:48,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:53:48,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:48,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:48,544 INFO L225 Difference]: With dead ends: 220 [2024-11-23 22:53:48,544 INFO L226 Difference]: Without dead ends: 127 [2024-11-23 22:53:48,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:53:48,546 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 107 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:48,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 619 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:53:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-23 22:53:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2024-11-23 22:53:48,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 22:53:48,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 174 transitions. [2024-11-23 22:53:48,562 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 174 transitions. Word has length 103 [2024-11-23 22:53:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:48,563 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 174 transitions. [2024-11-23 22:53:48,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 174 transitions. [2024-11-23 22:53:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:48,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:48,565 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:48,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:53:48,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:48,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:48,566 INFO L85 PathProgramCache]: Analyzing trace with hash -553150957, now seen corresponding path program 1 times [2024-11-23 22:53:48,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:48,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742120645] [2024-11-23 22:53:48,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:53:49,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:49,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742120645] [2024-11-23 22:53:49,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742120645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:53:49,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610242429] [2024-11-23 22:53:49,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:49,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:53:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:53:49,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:53:49,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:53:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:49,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 22:53:49,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:53:49,917 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 31 treesize of output 15 [2024-11-23 22:53:49,981 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 31 treesize of output 15 [2024-11-23 22:53:50,046 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 31 treesize of output 15 [2024-11-23 22:53:50,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:53:50,239 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 1 case distinctions, treesize of input 31 treesize of output 33 [2024-11-23 22:53:50,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:53:50,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 26 [2024-11-23 22:53:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 22:53:50,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:53:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:53:50,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610242429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:53:50,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:53:50,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 11 [2024-11-23 22:53:50,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085026641] [2024-11-23 22:53:50,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:53:50,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:53:50,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:50,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:53:50,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:53:50,704 INFO L87 Difference]: Start difference. First operand 126 states and 174 transitions. Second operand has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-23 22:53:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:51,143 INFO L93 Difference]: Finished difference Result 293 states and 394 transitions. [2024-11-23 22:53:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:53:51,143 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 103 [2024-11-23 22:53:51,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:51,146 INFO L225 Difference]: With dead ends: 293 [2024-11-23 22:53:51,146 INFO L226 Difference]: Without dead ends: 194 [2024-11-23 22:53:51,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 203 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:53:51,148 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 296 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:51,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 521 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:53:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-23 22:53:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 134. [2024-11-23 22:53:51,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 109 states have (on average 1.275229357798165) internal successors, (139), 110 states have internal predecessors, (139), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 22:53:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 179 transitions. [2024-11-23 22:53:51,168 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 179 transitions. Word has length 103 [2024-11-23 22:53:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:51,168 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 179 transitions. [2024-11-23 22:53:51,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-23 22:53:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 179 transitions. [2024-11-23 22:53:51,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:51,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:51,170 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:51,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:53:51,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:53:51,374 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:51,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1636712826, now seen corresponding path program 1 times [2024-11-23 22:53:51,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:51,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388329681] [2024-11-23 22:53:51,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:51,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:52,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:52,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388329681] [2024-11-23 22:53:52,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388329681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:52,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:52,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:53:52,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426001172] [2024-11-23 22:53:52,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:52,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:53:52,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:52,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:53:52,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:53:52,020 INFO L87 Difference]: Start difference. First operand 134 states and 179 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:52,213 INFO L93 Difference]: Finished difference Result 340 states and 453 transitions. [2024-11-23 22:53:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:53:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:52,218 INFO L225 Difference]: With dead ends: 340 [2024-11-23 22:53:52,219 INFO L226 Difference]: Without dead ends: 237 [2024-11-23 22:53:52,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:53:52,221 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 124 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:52,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 581 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:53:52,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-23 22:53:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 226. [2024-11-23 22:53:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 187 states have (on average 1.2834224598930482) internal successors, (240), 189 states have internal predecessors, (240), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-23 22:53:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2024-11-23 22:53:52,291 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 103 [2024-11-23 22:53:52,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:52,293 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2024-11-23 22:53:52,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2024-11-23 22:53:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:52,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:52,295 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:52,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:53:52,295 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:52,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -664109764, now seen corresponding path program 1 times [2024-11-23 22:53:52,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:52,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904495815] [2024-11-23 22:53:52,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:52,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:53,611 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:53,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:53,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904495815] [2024-11-23 22:53:53,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904495815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:53,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:53,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:53:53,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096802567] [2024-11-23 22:53:53,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:53,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:53:53,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:53,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:53:53,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:53:53,614 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:53,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:53,893 INFO L93 Difference]: Finished difference Result 442 states and 587 transitions. [2024-11-23 22:53:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:53:53,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:53,896 INFO L225 Difference]: With dead ends: 442 [2024-11-23 22:53:53,897 INFO L226 Difference]: Without dead ends: 247 [2024-11-23 22:53:53,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:53:53,898 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 120 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:53,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1121 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:53:53,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-23 22:53:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 162. [2024-11-23 22:53:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 134 states have (on average 1.2686567164179106) internal successors, (170), 135 states have internal predecessors, (170), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:53:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 214 transitions. [2024-11-23 22:53:53,922 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 214 transitions. Word has length 103 [2024-11-23 22:53:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:53,922 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 214 transitions. [2024-11-23 22:53:53,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 214 transitions. [2024-11-23 22:53:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:53,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:53,924 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:53,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:53:53,925 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:53,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:53,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1735336811, now seen corresponding path program 1 times [2024-11-23 22:53:53,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:53,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8800761] [2024-11-23 22:53:53,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:53,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:54,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:54,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8800761] [2024-11-23 22:53:54,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8800761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:54,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:54,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:53:54,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069404257] [2024-11-23 22:53:54,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:54,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:53:54,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:54,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:53:54,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:53:54,224 INFO L87 Difference]: Start difference. First operand 162 states and 214 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:54,302 INFO L93 Difference]: Finished difference Result 283 states and 374 transitions. [2024-11-23 22:53:54,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:53:54,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:54,305 INFO L225 Difference]: With dead ends: 283 [2024-11-23 22:53:54,305 INFO L226 Difference]: Without dead ends: 160 [2024-11-23 22:53:54,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:53:54,306 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 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 [2024-11-23 22:53:54,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:53:54,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-23 22:53:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-23 22:53:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 132 states have (on average 1.25) internal successors, (165), 133 states have internal predecessors, (165), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:53:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2024-11-23 22:53:54,330 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 103 [2024-11-23 22:53:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:54,330 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2024-11-23 22:53:54,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:54,330 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2024-11-23 22:53:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:53:54,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:54,332 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:54,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:53:54,332 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:54,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash -959905663, now seen corresponding path program 1 times [2024-11-23 22:53:54,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:54,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826758105] [2024-11-23 22:53:54,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:54,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:53:54,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:54,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826758105] [2024-11-23 22:53:54,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826758105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:54,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:54,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:53:54,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808528296] [2024-11-23 22:53:54,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:54,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:53:54,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:54,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:53:54,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:53:54,540 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:54,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:54,569 INFO L93 Difference]: Finished difference Result 257 states and 334 transitions. [2024-11-23 22:53:54,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:53:54,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:53:54,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:54,571 INFO L225 Difference]: With dead ends: 257 [2024-11-23 22:53:54,572 INFO L226 Difference]: Without dead ends: 136 [2024-11-23 22:53:54,574 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 [2024-11-23 22:53:54,575 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:54,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:53:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-23 22:53:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-23 22:53:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 108 states have (on average 1.212962962962963) internal successors, (131), 109 states have internal predecessors, (131), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:53:54,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 175 transitions. [2024-11-23 22:53:54,603 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 175 transitions. Word has length 103 [2024-11-23 22:53:54,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:54,604 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 175 transitions. [2024-11-23 22:53:54,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:53:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 175 transitions. [2024-11-23 22:53:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 22:53:54,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:54,606 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:54,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:53:54,606 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:54,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:54,607 INFO L85 PathProgramCache]: Analyzing trace with hash 746523829, now seen corresponding path program 1 times [2024-11-23 22:53:54,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:54,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603758872] [2024-11-23 22:53:54,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:53:54,766 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:53:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:53:54,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:53:54,947 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:53:54,948 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:53:54,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:53:54,954 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:55,076 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:53:55,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:53:55 BoogieIcfgContainer [2024-11-23 22:53:55,081 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:53:55,082 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:53:55,082 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:53:55,082 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:53:55,083 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:43" (3/4) ... [2024-11-23 22:53:55,085 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:53:55,086 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:53:55,087 INFO L158 Benchmark]: Toolchain (without parser) took 13607.69ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 117.3MB in the beginning and 213.7MB in the end (delta: -96.4MB). Peak memory consumption was 279.9MB. Max. memory is 16.1GB. [2024-11-23 22:53:55,087 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:53:55,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.73ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 102.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:53:55,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.94ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 98.5MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:53:55,088 INFO L158 Benchmark]: Boogie Preprocessor took 131.99ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 93.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:53:55,089 INFO L158 Benchmark]: RCFGBuilder took 1062.20ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 62.6MB in the end (delta: 31.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:53:55,089 INFO L158 Benchmark]: TraceAbstraction took 11856.67ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 62.1MB in the beginning and 213.8MB in the end (delta: -151.7MB). Peak memory consumption was 229.6MB. Max. memory is 16.1GB. [2024-11-23 22:53:55,089 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 520.1MB. Free memory was 213.8MB in the beginning and 213.7MB in the end (delta: 104.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:53:55,091 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.73ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 102.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.94ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 98.5MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 131.99ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 93.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1062.20ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 62.6MB in the end (delta: 31.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11856.67ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 62.1MB in the beginning and 213.8MB in the end (delta: -151.7MB). Peak memory consumption was 229.6MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 520.1MB. Free memory was 213.8MB in the beginning and 213.7MB in the end (delta: 104.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 38, overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryFLOATComparisonOperation at line 75. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][3] = { {1, 0, 0}, {0, 0, 0} }; [L25-L27] float float_Array_0[2] = { 16.5, 127.25 }; [L25-L27] float float_Array_0[2] = { 16.5, 127.25 }; [L25-L27] float float_Array_0[2] = { 16.5, 127.25 }; [L28-L30] signed long int signed_long_int_Array_0[1] = { -1 }; [L28-L30] signed long int signed_long_int_Array_0[1] = { -1 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 5 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 5 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 5 }; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] isInitial = 1 [L88] FCALL initially() [L90] FCALL updateLastVariables() [L91] CALL updateVariables() [L62] BOOL_unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L63] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L64] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L64] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L64] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] BOOL_unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] BOOL_unsigned_char_Array_0[0][2] = __VERIFIER_nondet_uchar() [L69] EXPR BOOL_unsigned_char_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] EXPR BOOL_unsigned_char_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] BOOL_unsigned_char_Array_0[1][2] = __VERIFIER_nondet_uchar() [L72] EXPR BOOL_unsigned_char_Array_0[1][2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] EXPR BOOL_unsigned_char_Array_0[1][2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] float_Array_0[1] = __VERIFIER_nondet_float() [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L77] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] RET updateVariables() [L92] CALL step() [L37] EXPR unsigned_char_Array_0[0] [L37] unsigned_char_Array_0[1] = (unsigned_char_Array_0[0] + 100) [L38] EXPR float_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] EXPR ((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f) [L38] EXPR float_Array_0[1] [L38] EXPR ((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] float_Array_0[0] = ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f))) [L39] EXPR unsigned_char_Array_0[1] [L39] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] COND FALSE !(unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) [L42] EXPR unsigned_char_Array_0[1] [L42] EXPR unsigned_char_Array_0[1] [L42] EXPR unsigned_char_Array_0[1] [L42] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L42] EXPR (((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) [L42] EXPR unsigned_char_Array_0[1] [L42] EXPR unsigned_char_Array_0[1] [L42] EXPR (((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L42] signed_long_int_Array_0[0] = (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])))) [L44] EXPR float_Array_0[1] [L44] EXPR float_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L44] COND TRUE float_Array_0[1] <= float_Array_0[0] [L45] EXPR signed_long_int_Array_0[0] [L45] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L45] COND TRUE signed_long_int_Array_0[0] != unsigned_char_Array_0[1] [L46] EXPR BOOL_unsigned_char_Array_0[1][2] [L46] BOOL_unsigned_char_Array_0[1][1] = BOOL_unsigned_char_Array_0[1][2] [L55] EXPR float_Array_0[0] [L55] EXPR float_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L55] COND FALSE !((- float_Array_0[0]) > float_Array_0[1]) [L58] EXPR signed_long_int_Array_0[0] [L58] EXPR unsigned_char_Array_0[0] [L58] EXPR (signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L58] EXPR (signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1] [L58] EXPR BOOL_unsigned_char_Array_0[0][1] [L58] EXPR (signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L58] BOOL_unsigned_char_Array_0[0][0] = ((signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1]) [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])))))) [L83] EXPR signed_long_int_Array_0[0] [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR (((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR ((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR ((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100))) [L83] EXPR unsigned_char_Array_0[1] [L83] EXPR unsigned_char_Array_0[0] [L83] EXPR ((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f))))) [L83] EXPR float_Array_0[0] [L83] EXPR float_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR ((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f) [L83] EXPR float_Array_0[1] [L83] EXPR ((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR ((((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f)))))) && (((- float_Array_0[0]) > float_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || (BOOL_unsigned_char_Array_0[1][1] && (BOOL_unsigned_char_Array_0[0][2] || BOOL_unsigned_char_Array_0[0][1]))))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) ((signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR ((((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f)))))) && (((- float_Array_0[0]) > float_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || (BOOL_unsigned_char_Array_0[1][1] && (BOOL_unsigned_char_Array_0[0][2] || BOOL_unsigned_char_Array_0[0][1]))))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) ((signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (((((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f)))))) && (((- float_Array_0[0]) > float_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || (BOOL_unsigned_char_Array_0[1][1] && (BOOL_unsigned_char_Array_0[0][2] || BOOL_unsigned_char_Array_0[0][1]))))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) ((signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1]))))) && ((float_Array_0[1] <= float_Array_0[0]) ? ((signed_long_int_Array_0[0] != unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][2])) : 1) : ((unsigned_char_Array_0[1] <= 1000000) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (((((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f)))))) && (((- float_Array_0[0]) > float_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || (BOOL_unsigned_char_Array_0[1][1] && (BOOL_unsigned_char_Array_0[0][2] || BOOL_unsigned_char_Array_0[0][1]))))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) ((signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1]))))) && ((float_Array_0[1] <= float_Array_0[0]) ? ((signed_long_int_Array_0[0] != unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][2])) : 1) : ((unsigned_char_Array_0[1] <= 1000000) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83-L84] return (((((unsigned_char_Array_0[1] > unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) - 10))) : (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) > ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) ? ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1])) : ((unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))))))) && (unsigned_char_Array_0[1] == ((unsigned char) (unsigned_char_Array_0[0] + 100)))) && (float_Array_0[0] == ((float) ((((float_Array_0[1]) < (64.15f)) ? (float_Array_0[1]) : (64.15f)))))) && (((- float_Array_0[0]) > float_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || (BOOL_unsigned_char_Array_0[1][1] && (BOOL_unsigned_char_Array_0[0][2] || BOOL_unsigned_char_Array_0[0][1]))))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) ((signed_long_int_Array_0[0] <= unsigned_char_Array_0[0]) && BOOL_unsigned_char_Array_0[0][1]))))) && ((float_Array_0[1] <= float_Array_0[0]) ? ((signed_long_int_Array_0[0] != unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][2])) : 1) : ((unsigned_char_Array_0[1] <= 1000000) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 10, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 648 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 647 mSDsluCounter, 4411 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3230 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 729 IncrementalHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 1181 mSDtfsCounter, 729 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 328 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=6, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 1238 NumberOfCodeBlocks, 1238 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1224 ConstructedInterpolants, 0 QuantifiedInterpolants, 3254 SizeOfPredicates, 5 NumberOfNonLiveVariables, 779 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 2539/2640 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 22:53:55,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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 50c37bde9278eab1809caec3e26685a471aa2f6bca248c9ca7684bcb902cbec2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:53:57,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:53:58,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:53:58,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:53:58,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:53:58,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:53:58,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:53:58,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:53:58,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:53:58,164 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:53:58,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:53:58,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:53:58,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:53:58,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:53:58,166 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:53:58,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:53:58,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:53:58,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:53:58,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:53:58,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:53:58,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:53:58,169 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:53:58,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:53:58,169 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:53:58,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:53:58,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:53:58,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:53:58,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:58,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:53:58,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:53:58,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:58,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:53:58,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:53:58,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:53:58,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:53:58,172 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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/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 -> 50c37bde9278eab1809caec3e26685a471aa2f6bca248c9ca7684bcb902cbec2 [2024-11-23 22:53:58,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:53:58,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:53:58,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:53:58,563 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:53:58,563 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:53:58,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i [2024-11-23 22:54:01,703 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/9318e44b4/99c124cbe70c4e51b48fd5acbb9fab9a/FLAG24589e898 [2024-11-23 22:54:01,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:54:01,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i [2024-11-23 22:54:01,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/9318e44b4/99c124cbe70c4e51b48fd5acbb9fab9a/FLAG24589e898 [2024-11-23 22:54:01,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/data/9318e44b4/99c124cbe70c4e51b48fd5acbb9fab9a [2024-11-23 22:54:01,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:54:02,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:54:02,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:02,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:54:02,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:54:02,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:01" (1/1) ... [2024-11-23 22:54:02,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d8856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02, skipping insertion in model container [2024-11-23 22:54:02,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:01" (1/1) ... [2024-11-23 22:54:02,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:54:02,206 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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i[916,929] [2024-11-23 22:54:02,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:02,348 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:54:02,369 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_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-42.i[916,929] [2024-11-23 22:54:02,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:02,451 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:54:02,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02 WrapperNode [2024-11-23 22:54:02,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:02,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:02,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:54:02,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:54:02,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,558 INFO L138 Inliner]: procedures = 33, calls = 141, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-11-23 22:54:02,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:02,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:54:02,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:54:02,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:54:02,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,636 INFO L175 MemorySlicer]: Split 115 memory accesses to 5 slices as follows [2, 40, 21, 9, 43]. 37 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 2, 1, 2]. The 15 writes are split as follows [0, 9, 2, 2, 2]. [2024-11-23 22:54:02,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,685 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:54:02,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:54:02,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:54:02,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:54:02,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (1/1) ... [2024-11-23 22:54:02,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:02,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:02,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:54:02,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:54:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-23 22:54:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-23 22:54:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-23 22:54:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-23 22:54:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-23 22:54:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-23 22:54:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-23 22:54:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-23 22:54:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-23 22:54:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-23 22:54:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:54:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:54:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:54:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-23 22:54:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-23 22:54:03,122 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:54:03,125 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:54:03,867 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-11-23 22:54:03,867 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:54:03,889 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:54:03,889 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:54:03,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:03 BoogieIcfgContainer [2024-11-23 22:54:03,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:54:03,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:54:03,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:54:03,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:54:03,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:54:01" (1/3) ... [2024-11-23 22:54:03,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fee443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:03, skipping insertion in model container [2024-11-23 22:54:03,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:02" (2/3) ... [2024-11-23 22:54:03,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fee443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:03, skipping insertion in model container [2024-11-23 22:54:03,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:03" (3/3) ... [2024-11-23 22:54:03,903 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-42.i [2024-11-23 22:54:03,923 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:54:03,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-42.i that has 2 procedures, 100 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:54:04,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:54:04,020 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;@61f140c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:54:04,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:54:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 87 states have internal predecessors, (122), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:54:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:04,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:04,077 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:04,078 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:04,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:04,087 INFO L85 PathProgramCache]: Analyzing trace with hash 437609435, now seen corresponding path program 1 times [2024-11-23 22:54:04,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:04,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017832851] [2024-11-23 22:54:04,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:04,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:04,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:04,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:04,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 22:54:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:04,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:54:04,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-23 22:54:04,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:04,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:04,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017832851] [2024-11-23 22:54:04,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017832851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:04,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:04,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:54:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284410840] [2024-11-23 22:54:04,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:04,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:54:04,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:04,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:54:04,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:54:04,578 INFO L87 Difference]: Start difference. First operand has 100 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 87 states have internal predecessors, (122), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:04,622 INFO L93 Difference]: Finished difference Result 193 states and 293 transitions. [2024-11-23 22:54:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:54:04,624 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-23 22:54:04,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:04,632 INFO L225 Difference]: With dead ends: 193 [2024-11-23 22:54:04,633 INFO L226 Difference]: Without dead ends: 96 [2024-11-23 22:54:04,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:54:04,639 INFO L435 NwaCegarLoop]: 135 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, 135 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 [2024-11-23 22:54:04,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-23 22:54:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-23 22:54:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:54:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2024-11-23 22:54:04,687 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 103 [2024-11-23 22:54:04,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:04,687 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2024-11-23 22:54:04,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2024-11-23 22:54:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:04,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:04,692 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:04,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 22:54:04,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:04,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:04,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -383646895, now seen corresponding path program 1 times [2024-11-23 22:54:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:04,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773204212] [2024-11-23 22:54:04,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:04,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:04,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:04,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:04,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 22:54:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:05,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 22:54:05,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:05,456 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 33 treesize of output 28 [2024-11-23 22:54:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:54:05,664 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:05,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:05,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773204212] [2024-11-23 22:54:05,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773204212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:05,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:05,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:54:05,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777025537] [2024-11-23 22:54:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:05,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:54:05,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:05,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:54:05,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:05,669 INFO L87 Difference]: Start difference. First operand 96 states and 135 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:06,477 INFO L93 Difference]: Finished difference Result 228 states and 316 transitions. [2024-11-23 22:54:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:54:06,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:54:06,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:06,480 INFO L225 Difference]: With dead ends: 228 [2024-11-23 22:54:06,481 INFO L226 Difference]: Without dead ends: 135 [2024-11-23 22:54:06,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:54:06,483 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 230 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:06,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 548 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:54:06,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-23 22:54:06,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 100. [2024-11-23 22:54:06,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:54:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2024-11-23 22:54:06,506 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 103 [2024-11-23 22:54:06,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:06,506 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2024-11-23 22:54:06,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2024-11-23 22:54:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:06,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:06,509 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:06,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 22:54:06,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:06,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:06,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:06,714 INFO L85 PathProgramCache]: Analyzing trace with hash -243098285, now seen corresponding path program 1 times [2024-11-23 22:54:06,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:06,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361170342] [2024-11-23 22:54:06,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:06,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:06,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:06,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:06,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 22:54:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:06,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 22:54:06,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:07,055 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 33 treesize of output 28 [2024-11-23 22:54:07,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:07,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 31 [2024-11-23 22:54:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:54:07,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:07,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:07,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361170342] [2024-11-23 22:54:07,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361170342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:07,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:07,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:54:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621530691] [2024-11-23 22:54:07,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:07,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:54:07,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:07,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:54:07,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:54:07,436 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:08,480 INFO L93 Difference]: Finished difference Result 232 states and 317 transitions. [2024-11-23 22:54:08,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:54:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:54:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:08,484 INFO L225 Difference]: With dead ends: 232 [2024-11-23 22:54:08,484 INFO L226 Difference]: Without dead ends: 135 [2024-11-23 22:54:08,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:54:08,489 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 208 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:08,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 696 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:54:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-23 22:54:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 100. [2024-11-23 22:54:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 86 states have internal predecessors, (114), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:54:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2024-11-23 22:54:08,519 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 103 [2024-11-23 22:54:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:08,520 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2024-11-23 22:54:08,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2024-11-23 22:54:08,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:08,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:08,525 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:08,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:08,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:08,726 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:08,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:08,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1254215535, now seen corresponding path program 1 times [2024-11-23 22:54:08,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:08,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009289153] [2024-11-23 22:54:08,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:08,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:08,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:08,730 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:08,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 22:54:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:09,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 22:54:09,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:09,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 22:54:09,260 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 41 treesize of output 19 [2024-11-23 22:54:09,439 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 41 treesize of output 19 [2024-11-23 22:54:09,575 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 36 treesize of output 29 [2024-11-23 22:54:10,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:10,348 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 1 case distinctions, treesize of input 53 treesize of output 43 [2024-11-23 22:54:10,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:10,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 30 [2024-11-23 22:54:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 128 proven. 27 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-23 22:54:10,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:54:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:54:10,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009289153] [2024-11-23 22:54:10,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009289153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:54:10,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:54:10,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2024-11-23 22:54:10,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981639829] [2024-11-23 22:54:10,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:54:10,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:54:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:10,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:54:10,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:54:10,899 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand has 14 states, 12 states have (on average 7.666666666666667) internal successors, (92), 14 states have internal predecessors, (92), 7 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-23 22:54:12,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:12,133 INFO L93 Difference]: Finished difference Result 263 states and 352 transitions. [2024-11-23 22:54:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 22:54:12,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.666666666666667) internal successors, (92), 14 states have internal predecessors, (92), 7 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) Word has length 103 [2024-11-23 22:54:12,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:12,137 INFO L225 Difference]: With dead ends: 263 [2024-11-23 22:54:12,137 INFO L226 Difference]: Without dead ends: 166 [2024-11-23 22:54:12,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:54:12,138 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 638 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:12,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 520 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:54:12,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-23 22:54:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2024-11-23 22:54:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 92 states have internal predecessors, (119), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:54:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2024-11-23 22:54:12,174 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 141 transitions. Word has length 103 [2024-11-23 22:54:12,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:12,175 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 141 transitions. [2024-11-23 22:54:12,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.666666666666667) internal successors, (92), 14 states have internal predecessors, (92), 7 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-23 22:54:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 141 transitions. [2024-11-23 22:54:12,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:12,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:12,182 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:12,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-23 22:54:12,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:12,383 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:12,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash 935648248, now seen corresponding path program 1 times [2024-11-23 22:54:12,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:12,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067458450] [2024-11-23 22:54:12,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:12,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:12,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:12,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:12,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-23 22:54:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:12,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:54:12,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:12,682 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 33 treesize of output 28 [2024-11-23 22:54:12,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-23 22:54:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:54:12,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:12,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:12,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067458450] [2024-11-23 22:54:12,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067458450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:12,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:12,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:54:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817382519] [2024-11-23 22:54:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:13,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:54:13,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:13,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:54:13,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:54:13,001 INFO L87 Difference]: Start difference. First operand 108 states and 141 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:14,143 INFO L93 Difference]: Finished difference Result 359 states and 463 transitions. [2024-11-23 22:54:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 22:54:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:54:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:14,146 INFO L225 Difference]: With dead ends: 359 [2024-11-23 22:54:14,147 INFO L226 Difference]: Without dead ends: 254 [2024-11-23 22:54:14,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:54:14,149 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 386 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:14,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 733 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:54:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-23 22:54:14,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 115. [2024-11-23 22:54:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 99 states have (on average 1.303030303030303) internal successors, (129), 99 states have internal predecessors, (129), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 22:54:14,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions. [2024-11-23 22:54:14,192 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 103 [2024-11-23 22:54:14,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:14,192 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions. [2024-11-23 22:54:14,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions. [2024-11-23 22:54:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:14,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:14,197 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:14,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-23 22:54:14,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:14,401 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:14,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1365174342, now seen corresponding path program 1 times [2024-11-23 22:54:14,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:14,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048316643] [2024-11-23 22:54:14,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:14,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:14,407 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:14,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-23 22:54:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:14,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:54:14,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:15,248 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 121 treesize of output 61 [2024-11-23 22:54:15,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:15,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 58 [2024-11-23 22:54:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:54:15,639 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:54:27,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048316643] [2024-11-23 22:54:27,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048316643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2049662613] [2024-11-23 22:54:27,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:27,683 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:54:27,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:54:27,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:54:27,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-23 22:54:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:28,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:54:28,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:29,662 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 121 treesize of output 61 [2024-11-23 22:54:29,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:29,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 58 [2024-11-23 22:54:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:54:30,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:54:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2049662613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:36,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:54:36,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-23 22:54:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242745205] [2024-11-23 22:54:36,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:54:36,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:54:36,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:36,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:54:36,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:54:36,210 INFO L87 Difference]: Start difference. First operand 115 states and 151 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:40,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:40,537 INFO L93 Difference]: Finished difference Result 426 states and 561 transitions. [2024-11-23 22:54:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:54:40,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:54:40,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:40,545 INFO L225 Difference]: With dead ends: 426 [2024-11-23 22:54:40,545 INFO L226 Difference]: Without dead ends: 314 [2024-11-23 22:54:40,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 249 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:54:40,551 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 380 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:40,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1395 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-23 22:54:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-23 22:54:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 303. [2024-11-23 22:54:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 261 states have (on average 1.2988505747126438) internal successors, (339), 263 states have internal predecessors, (339), 30 states have call successors, (30), 11 states have call predecessors, (30), 11 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 22:54:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 399 transitions. [2024-11-23 22:54:40,606 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 399 transitions. Word has length 103 [2024-11-23 22:54:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:40,607 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 399 transitions. [2024-11-23 22:54:40,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:40,607 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 399 transitions. [2024-11-23 22:54:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:40,610 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:40,610 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:40,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-23 22:54:40,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-23 22:54:41,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 22:54:41,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:41,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:41,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1874647432, now seen corresponding path program 1 times [2024-11-23 22:54:41,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:41,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550476114] [2024-11-23 22:54:41,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:41,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:41,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:41,016 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:41,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-23 22:54:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:41,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:54:41,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:43,125 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 88 treesize of output 34 [2024-11-23 22:54:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:54:43,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:43,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:43,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550476114] [2024-11-23 22:54:43,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550476114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:43,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:43,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:54:43,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265160410] [2024-11-23 22:54:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:43,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:54:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:43,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:54:43,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:43,302 INFO L87 Difference]: Start difference. First operand 303 states and 399 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:45,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:45,682 INFO L93 Difference]: Finished difference Result 518 states and 677 transitions. [2024-11-23 22:54:45,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:54:45,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:54:45,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:45,685 INFO L225 Difference]: With dead ends: 518 [2024-11-23 22:54:45,685 INFO L226 Difference]: Without dead ends: 218 [2024-11-23 22:54:45,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:54:45,687 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 277 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:45,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 634 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 22:54:45,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-23 22:54:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2024-11-23 22:54:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 183 states have (on average 1.278688524590164) internal successors, (234), 184 states have internal predecessors, (234), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 278 transitions. [2024-11-23 22:54:45,738 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 278 transitions. Word has length 103 [2024-11-23 22:54:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:45,739 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 278 transitions. [2024-11-23 22:54:45,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 278 transitions. [2024-11-23 22:54:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:54:45,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:45,741 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:45,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:45,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:45,942 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:45,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:45,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1846254600, now seen corresponding path program 1 times [2024-11-23 22:54:45,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:45,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806381657] [2024-11-23 22:54:45,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:45,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:45,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:45,945 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:45,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-23 22:54:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:46,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:46,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:54:46,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:46,234 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806381657] [2024-11-23 22:54:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806381657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:46,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:46,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:54:46,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169911586] [2024-11-23 22:54:46,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:46,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:46,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:46,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:46,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:46,236 INFO L87 Difference]: Start difference. First operand 215 states and 278 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:46,442 INFO L93 Difference]: Finished difference Result 427 states and 553 transitions. [2024-11-23 22:54:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:46,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 22:54:46,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:46,447 INFO L225 Difference]: With dead ends: 427 [2024-11-23 22:54:46,447 INFO L226 Difference]: Without dead ends: 215 [2024-11-23 22:54:46,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:46,449 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:46,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:46,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-23 22:54:46,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-23 22:54:46,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 183 states have (on average 1.273224043715847) internal successors, (233), 184 states have internal predecessors, (233), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:46,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 277 transitions. [2024-11-23 22:54:46,486 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 277 transitions. Word has length 103 [2024-11-23 22:54:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:46,486 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 277 transitions. [2024-11-23 22:54:46,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 277 transitions. [2024-11-23 22:54:46,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 22:54:46,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:46,488 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:46,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-23 22:54:46,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:46,689 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:46,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:46,690 INFO L85 PathProgramCache]: Analyzing trace with hash -450500691, now seen corresponding path program 1 times [2024-11-23 22:54:46,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:46,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419472581] [2024-11-23 22:54:46,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:46,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:46,693 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:46,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-23 22:54:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:46,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:54:46,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:46,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:54:47,174 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 33 treesize of output 28 [2024-11-23 22:54:47,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:47,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 44 [2024-11-23 22:54:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:54:47,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:47,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:47,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419472581] [2024-11-23 22:54:47,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419472581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:47,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:47,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:54:47,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339312726] [2024-11-23 22:54:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:47,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:54:47,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:47,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:54:47,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:54:47,917 INFO L87 Difference]: Start difference. First operand 215 states and 277 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:50,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:50,816 INFO L93 Difference]: Finished difference Result 498 states and 633 transitions. [2024-11-23 22:54:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:54:50,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-23 22:54:50,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:50,819 INFO L225 Difference]: With dead ends: 498 [2024-11-23 22:54:50,819 INFO L226 Difference]: Without dead ends: 286 [2024-11-23 22:54:50,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:54:50,826 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 198 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:50,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 693 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 22:54:50,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-23 22:54:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 219. [2024-11-23 22:54:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 187 states have (on average 1.267379679144385) internal successors, (237), 188 states have internal predecessors, (237), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:50,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 281 transitions. [2024-11-23 22:54:50,880 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 281 transitions. Word has length 105 [2024-11-23 22:54:50,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:50,881 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 281 transitions. [2024-11-23 22:54:50,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:54:50,881 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 281 transitions. [2024-11-23 22:54:50,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 22:54:50,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:50,883 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:50,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-23 22:54:51,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:51,084 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:51,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:51,084 INFO L85 PathProgramCache]: Analyzing trace with hash 250563887, now seen corresponding path program 1 times [2024-11-23 22:54:51,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:51,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901512510] [2024-11-23 22:54:51,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:51,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:51,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:51,087 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:51,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-23 22:54:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:51,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:54:51,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:51,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-23 22:54:51,494 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 34 treesize of output 26 [2024-11-23 22:54:51,561 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 45 treesize of output 21 [2024-11-23 22:54:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:54:51,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:51,763 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901512510] [2024-11-23 22:54:51,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901512510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:51,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:51,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:54:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641554825] [2024-11-23 22:54:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:51,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:54:51,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:51,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:54:51,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:51,765 INFO L87 Difference]: Start difference. First operand 219 states and 281 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:53,555 INFO L93 Difference]: Finished difference Result 641 states and 822 transitions. [2024-11-23 22:54:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:54:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-23 22:54:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:53,560 INFO L225 Difference]: With dead ends: 641 [2024-11-23 22:54:53,560 INFO L226 Difference]: Without dead ends: 425 [2024-11-23 22:54:53,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:54:53,562 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 116 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:53,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 844 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:54:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-23 22:54:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 249. [2024-11-23 22:54:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 217 states have (on average 1.262672811059908) internal successors, (274), 218 states have internal predecessors, (274), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:53,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 318 transitions. [2024-11-23 22:54:53,607 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 318 transitions. Word has length 105 [2024-11-23 22:54:53,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:53,607 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 318 transitions. [2024-11-23 22:54:53,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 318 transitions. [2024-11-23 22:54:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 22:54:53,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:53,609 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:53,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:53,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:53,810 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:53,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:53,811 INFO L85 PathProgramCache]: Analyzing trace with hash -820663160, now seen corresponding path program 1 times [2024-11-23 22:54:53,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:53,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065207830] [2024-11-23 22:54:53,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:53,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:53,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:53,813 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:53,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-23 22:54:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:54,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:54,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:54,061 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 21 treesize of output 9 [2024-11-23 22:54:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:54:54,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:54,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:54,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065207830] [2024-11-23 22:54:54,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065207830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:54,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009561820] [2024-11-23 22:54:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:54,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:54,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:54,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:54,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:54,116 INFO L87 Difference]: Start difference. First operand 249 states and 318 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:54,200 INFO L93 Difference]: Finished difference Result 491 states and 627 transitions. [2024-11-23 22:54:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:54,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-23 22:54:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:54,203 INFO L225 Difference]: With dead ends: 491 [2024-11-23 22:54:54,203 INFO L226 Difference]: Without dead ends: 245 [2024-11-23 22:54:54,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:54,206 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:54,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-23 22:54:54,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-11-23 22:54:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 213 states have (on average 1.2394366197183098) internal successors, (264), 214 states have internal predecessors, (264), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 308 transitions. [2024-11-23 22:54:54,251 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 308 transitions. Word has length 105 [2024-11-23 22:54:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:54,251 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 308 transitions. [2024-11-23 22:54:54,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 308 transitions. [2024-11-23 22:54:54,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 22:54:54,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:54,252 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:54,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-23 22:54:54,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:54,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:54,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:54,453 INFO L85 PathProgramCache]: Analyzing trace with hash 276194934, now seen corresponding path program 1 times [2024-11-23 22:54:54,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:54,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964677882] [2024-11-23 22:54:54,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:54,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:54,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:54,458 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:54,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-23 22:54:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:54,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:54,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:54,705 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 21 treesize of output 9 [2024-11-23 22:54:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:54:54,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:54,768 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964677882] [2024-11-23 22:54:54,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964677882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:54,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:54,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160699087] [2024-11-23 22:54:54,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:54,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:54,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:54,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:54,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:54,770 INFO L87 Difference]: Start difference. First operand 245 states and 308 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:54,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:54,847 INFO L93 Difference]: Finished difference Result 442 states and 553 transitions. [2024-11-23 22:54:54,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:54,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-23 22:54:54,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:54,849 INFO L225 Difference]: With dead ends: 442 [2024-11-23 22:54:54,850 INFO L226 Difference]: Without dead ends: 200 [2024-11-23 22:54:54,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:54,851 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:54,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:54,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-23 22:54:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-23 22:54:54,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 169 states have internal predecessors, (202), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 246 transitions. [2024-11-23 22:54:54,890 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 246 transitions. Word has length 105 [2024-11-23 22:54:54,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:54,891 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 246 transitions. [2024-11-23 22:54:54,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:54:54,891 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 246 transitions. [2024-11-23 22:54:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 22:54:54,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:54,893 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:54,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-23 22:54:55,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:55,094 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:55,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash -720393240, now seen corresponding path program 1 times [2024-11-23 22:54:55,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:55,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129301280] [2024-11-23 22:54:55,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:55,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:54:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:55,097 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:54:55,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-23 22:54:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:55,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 22:54:55,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:55,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 22:54:57,201 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 121 treesize of output 61 [2024-11-23 22:54:58,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:58,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 58 [2024-11-23 22:54:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:54:58,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:00,668 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:55:00,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:00,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129301280] [2024-11-23 22:55:00,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129301280] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:00,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:00,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 20 [2024-11-23 22:55:00,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609790488] [2024-11-23 22:55:00,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:00,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:55:00,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:00,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:55:00,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:55:00,671 INFO L87 Difference]: Start difference. First operand 200 states and 246 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:03,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:03,267 INFO L93 Difference]: Finished difference Result 563 states and 695 transitions. [2024-11-23 22:55:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:55:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-23 22:55:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:03,271 INFO L225 Difference]: With dead ends: 563 [2024-11-23 22:55:03,271 INFO L226 Difference]: Without dead ends: 366 [2024-11-23 22:55:03,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:55:03,276 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 284 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:03,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 920 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 22:55:03,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-23 22:55:03,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 234. [2024-11-23 22:55:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 202 states have (on average 1.202970297029703) internal successors, (243), 203 states have internal predecessors, (243), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:55:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 287 transitions. [2024-11-23 22:55:03,324 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 287 transitions. Word has length 107 [2024-11-23 22:55:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:03,324 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 287 transitions. [2024-11-23 22:55:03,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 287 transitions. [2024-11-23 22:55:03,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 22:55:03,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:03,326 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:03,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-23 22:55:03,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:03,526 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:03,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1113420250, now seen corresponding path program 1 times [2024-11-23 22:55:03,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:03,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732312604] [2024-11-23 22:55:03,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:03,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:03,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:03,529 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:03,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-23 22:55:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:03,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:55:03,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:05,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:05,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 41 [2024-11-23 22:55:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:55:05,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:05,788 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:05,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732312604] [2024-11-23 22:55:05,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732312604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:05,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:05,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:55:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586238447] [2024-11-23 22:55:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:05,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:55:05,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:05,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:55:05,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:55:05,790 INFO L87 Difference]: Start difference. First operand 234 states and 287 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:08,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:08,000 INFO L93 Difference]: Finished difference Result 724 states and 893 transitions. [2024-11-23 22:55:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:55:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-23 22:55:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:08,006 INFO L225 Difference]: With dead ends: 724 [2024-11-23 22:55:08,006 INFO L226 Difference]: Without dead ends: 493 [2024-11-23 22:55:08,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:08,008 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 358 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:08,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 518 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:55:08,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-23 22:55:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 260. [2024-11-23 22:55:08,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 228 states have (on average 1.1929824561403508) internal successors, (272), 229 states have internal predecessors, (272), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:55:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2024-11-23 22:55:08,062 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 107 [2024-11-23 22:55:08,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:08,063 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2024-11-23 22:55:08,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:08,063 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2024-11-23 22:55:08,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 22:55:08,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:08,064 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:08,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-23 22:55:08,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:08,265 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:08,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:08,266 INFO L85 PathProgramCache]: Analyzing trace with hash -651807763, now seen corresponding path program 1 times [2024-11-23 22:55:08,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:08,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255918944] [2024-11-23 22:55:08,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:08,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:08,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:08,270 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:08,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-23 22:55:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:08,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 22:55:08,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:10,443 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 119 treesize of output 59 [2024-11-23 22:55:11,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:11,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 47 [2024-11-23 22:55:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:55:12,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:55:13,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:13,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255918944] [2024-11-23 22:55:13,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255918944] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:13,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:13,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2024-11-23 22:55:13,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154135040] [2024-11-23 22:55:13,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:13,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:55:13,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:13,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:55:13,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:55:13,845 INFO L87 Difference]: Start difference. First operand 260 states and 316 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:16,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:16,127 INFO L93 Difference]: Finished difference Result 639 states and 779 transitions. [2024-11-23 22:55:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:55:16,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-23 22:55:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:16,132 INFO L225 Difference]: With dead ends: 639 [2024-11-23 22:55:16,132 INFO L226 Difference]: Without dead ends: 382 [2024-11-23 22:55:16,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:55:16,134 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 167 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:16,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 684 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 22:55:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-23 22:55:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 251. [2024-11-23 22:55:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 219 states have (on average 1.1963470319634704) internal successors, (262), 220 states have internal predecessors, (262), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:55:16,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2024-11-23 22:55:16,174 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 107 [2024-11-23 22:55:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:16,175 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2024-11-23 22:55:16,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2024-11-23 22:55:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 22:55:16,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:16,176 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:16,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-23 22:55:16,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:16,377 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:16,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:16,377 INFO L85 PathProgramCache]: Analyzing trace with hash 573346479, now seen corresponding path program 1 times [2024-11-23 22:55:16,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:16,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760975991] [2024-11-23 22:55:16,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:16,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:16,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:16,380 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:16,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-23 22:55:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:16,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 22:55:16,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:17,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 22:55:18,485 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 119 treesize of output 59 [2024-11-23 22:55:18,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:18,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 56 [2024-11-23 22:55:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:55:19,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:55:20,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760975991] [2024-11-23 22:55:20,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760975991] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:20,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:20,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2024-11-23 22:55:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103301371] [2024-11-23 22:55:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:20,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:55:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:20,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:55:20,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:55:20,193 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:21,393 INFO L93 Difference]: Finished difference Result 562 states and 690 transitions. [2024-11-23 22:55:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:55:21,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-23 22:55:21,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:21,409 INFO L225 Difference]: With dead ends: 562 [2024-11-23 22:55:21,410 INFO L226 Difference]: Without dead ends: 314 [2024-11-23 22:55:21,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:55:21,412 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 164 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:21,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 457 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:55:21,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-23 22:55:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 242. [2024-11-23 22:55:21,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 210 states have (on average 1.1857142857142857) internal successors, (249), 211 states have internal predecessors, (249), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:55:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 293 transitions. [2024-11-23 22:55:21,499 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 293 transitions. Word has length 107 [2024-11-23 22:55:21,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:21,499 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 293 transitions. [2024-11-23 22:55:21,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 293 transitions. [2024-11-23 22:55:21,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 22:55:21,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:21,501 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:21,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-23 22:55:21,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:21,701 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:21,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash -236148499, now seen corresponding path program 1 times [2024-11-23 22:55:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:21,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825982842] [2024-11-23 22:55:21,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:21,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:21,706 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:21,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-23 22:55:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:21,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 22:55:21,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:22,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 22:55:24,608 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 75 treesize of output 33 [2024-11-23 22:55:26,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:26,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 48 [2024-11-23 22:55:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 98 proven. 6 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 22:55:26,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:55:28,447 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:28,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825982842] [2024-11-23 22:55:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825982842] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:28,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:28,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 22 [2024-11-23 22:55:28,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84141618] [2024-11-23 22:55:28,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:28,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:55:28,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:28,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:55:28,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:55:28,448 INFO L87 Difference]: Start difference. First operand 242 states and 293 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:29,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:29,469 INFO L93 Difference]: Finished difference Result 539 states and 653 transitions. [2024-11-23 22:55:29,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:55:29,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-23 22:55:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:29,473 INFO L225 Difference]: With dead ends: 539 [2024-11-23 22:55:29,473 INFO L226 Difference]: Without dead ends: 285 [2024-11-23 22:55:29,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:55:29,475 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 284 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:29,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 718 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:55:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-23 22:55:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 166. [2024-11-23 22:55:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 144 states have (on average 1.1666666666666667) internal successors, (168), 144 states have internal predecessors, (168), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:55:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 196 transitions. [2024-11-23 22:55:29,511 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 196 transitions. Word has length 107 [2024-11-23 22:55:29,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:29,513 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 196 transitions. [2024-11-23 22:55:29,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:29,513 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 196 transitions. [2024-11-23 22:55:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 22:55:29,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:29,515 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:29,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-23 22:55:29,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:29,715 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:29,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:29,716 INFO L85 PathProgramCache]: Analyzing trace with hash -629175509, now seen corresponding path program 1 times [2024-11-23 22:55:29,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:29,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874214410] [2024-11-23 22:55:29,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:29,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:29,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:29,720 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:29,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-23 22:55:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:30,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:55:30,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:30,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:55:31,334 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 45 treesize of output 21 [2024-11-23 22:55:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:55:31,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:31,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:31,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874214410] [2024-11-23 22:55:31,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874214410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:31,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:31,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:55:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043736274] [2024-11-23 22:55:31,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:31,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:55:31,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:31,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:55:31,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:31,699 INFO L87 Difference]: Start difference. First operand 166 states and 196 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:34,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:34,157 INFO L93 Difference]: Finished difference Result 425 states and 504 transitions. [2024-11-23 22:55:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:55:34,158 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-23 22:55:34,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:34,159 INFO L225 Difference]: With dead ends: 425 [2024-11-23 22:55:34,160 INFO L226 Difference]: Without dead ends: 262 [2024-11-23 22:55:34,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:55:34,161 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 167 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:34,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1207 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:55:34,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-23 22:55:34,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 163. [2024-11-23 22:55:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 141 states have (on average 1.1631205673758864) internal successors, (164), 141 states have internal predecessors, (164), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:55:34,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 192 transitions. [2024-11-23 22:55:34,204 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 192 transitions. Word has length 107 [2024-11-23 22:55:34,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:34,205 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 192 transitions. [2024-11-23 22:55:34,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:55:34,205 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 192 transitions. [2024-11-23 22:55:34,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 22:55:34,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:34,206 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:34,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-23 22:55:34,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:34,411 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:34,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:34,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1864705393, now seen corresponding path program 1 times [2024-11-23 22:55:34,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:34,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940629237] [2024-11-23 22:55:34,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:34,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:34,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:34,414 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:34,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-23 22:55:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:34,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 22:55:34,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:34,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 22:55:34,897 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 31 treesize of output 15 [2024-11-23 22:55:35,038 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 31 treesize of output 15 [2024-11-23 22:55:35,207 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 26 treesize of output 25 [2024-11-23 22:55:36,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:36,334 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 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-23 22:55:36,682 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 70 treesize of output 52 [2024-11-23 22:55:36,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:36,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:36,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 94 [2024-11-23 22:55:36,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:55:36,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 32 [2024-11-23 22:55:38,427 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:38,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 57 [2024-11-23 22:55:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 128 proven. 27 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-23 22:55:38,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:55:39,838 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:39,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940629237] [2024-11-23 22:55:39,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940629237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:55:39,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:55:39,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 13 [2024-11-23 22:55:39,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315340970] [2024-11-23 22:55:39,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:55:39,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 22:55:39,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:39,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 22:55:39,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:55:39,840 INFO L87 Difference]: Start difference. First operand 163 states and 192 transitions. Second operand has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-23 22:55:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:42,593 INFO L93 Difference]: Finished difference Result 396 states and 465 transitions. [2024-11-23 22:55:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 22:55:42,594 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) Word has length 111 [2024-11-23 22:55:42,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:42,595 INFO L225 Difference]: With dead ends: 396 [2024-11-23 22:55:42,595 INFO L226 Difference]: Without dead ends: 236 [2024-11-23 22:55:42,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:55:42,597 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 201 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:42,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 513 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 22:55:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-23 22:55:42,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 163. [2024-11-23 22:55:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 141 states have (on average 1.1560283687943262) internal successors, (163), 141 states have internal predecessors, (163), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:55:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 191 transitions. [2024-11-23 22:55:42,631 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 191 transitions. Word has length 111 [2024-11-23 22:55:42,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:42,632 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 191 transitions. [2024-11-23 22:55:42,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-23 22:55:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 191 transitions. [2024-11-23 22:55:42,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 22:55:42,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:42,633 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:42,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-23 22:55:42,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:42,834 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:42,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2091402710, now seen corresponding path program 1 times [2024-11-23 22:55:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:42,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026135036] [2024-11-23 22:55:42,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:42,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:42,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:42,836 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:42,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-23 22:55:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:43,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 22:55:43,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:43,654 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 33 treesize of output 26 [2024-11-23 22:55:44,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:44,116 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 1 case distinctions, treesize of input 41 treesize of output 37 [2024-11-23 22:55:44,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:44,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 19 [2024-11-23 22:55:45,258 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-23 22:55:45,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:55:47,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:47,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026135036] [2024-11-23 22:55:47,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026135036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:55:47,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:55:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 24 [2024-11-23 22:55:47,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829233341] [2024-11-23 22:55:47,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:55:47,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 22:55:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:47,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 22:55:47,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:55:47,541 INFO L87 Difference]: Start difference. First operand 163 states and 191 transitions. Second operand has 24 states, 22 states have (on average 4.181818181818182) internal successors, (92), 24 states have internal predecessors, (92), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-23 22:56:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:00,294 INFO L93 Difference]: Finished difference Result 664 states and 772 transitions. [2024-11-23 22:56:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-23 22:56:00,295 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.181818181818182) internal successors, (92), 24 states have internal predecessors, (92), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 111 [2024-11-23 22:56:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:00,297 INFO L225 Difference]: With dead ends: 664 [2024-11-23 22:56:00,297 INFO L226 Difference]: Without dead ends: 504 [2024-11-23 22:56:00,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 198 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=645, Invalid=3645, Unknown=0, NotChecked=0, Total=4290 [2024-11-23 22:56:00,299 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 935 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:00,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 1710 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-23 22:56:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-23 22:56:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 186. [2024-11-23 22:56:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 164 states have (on average 1.1219512195121952) internal successors, (184), 164 states have internal predecessors, (184), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 212 transitions. [2024-11-23 22:56:00,340 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 212 transitions. Word has length 111 [2024-11-23 22:56:00,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:00,340 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 212 transitions. [2024-11-23 22:56:00,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.181818181818182) internal successors, (92), 24 states have internal predecessors, (92), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-23 22:56:00,340 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 212 transitions. [2024-11-23 22:56:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 22:56:00,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:00,341 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:00,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:00,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:00,545 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:00,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:00,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1523506216, now seen corresponding path program 1 times [2024-11-23 22:56:00,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:00,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641814688] [2024-11-23 22:56:00,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:00,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:00,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:00,548 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:00,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-23 22:56:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:00,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 22:56:00,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:02,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:02,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 65 [2024-11-23 22:56:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:56:02,494 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:02,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:02,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641814688] [2024-11-23 22:56:02,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641814688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:02,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:02,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:56:02,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58504466] [2024-11-23 22:56:02,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:02,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:56:02,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:02,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:56:02,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:56:02,496 INFO L87 Difference]: Start difference. First operand 186 states and 212 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:04,280 INFO L93 Difference]: Finished difference Result 492 states and 567 transitions. [2024-11-23 22:56:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:56:04,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-23 22:56:04,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:04,283 INFO L225 Difference]: With dead ends: 492 [2024-11-23 22:56:04,283 INFO L226 Difference]: Without dead ends: 309 [2024-11-23 22:56:04,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:56:04,284 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 132 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:04,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 816 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:56:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-23 22:56:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 190. [2024-11-23 22:56:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 168 states have (on average 1.119047619047619) internal successors, (188), 168 states have internal predecessors, (188), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 216 transitions. [2024-11-23 22:56:04,322 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 216 transitions. Word has length 111 [2024-11-23 22:56:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:04,323 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 216 transitions. [2024-11-23 22:56:04,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 216 transitions. [2024-11-23 22:56:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 22:56:04,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:04,324 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:04,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-23 22:56:04,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:04,525 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:04,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:04,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1165304945, now seen corresponding path program 1 times [2024-11-23 22:56:04,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:04,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691184932] [2024-11-23 22:56:04,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:04,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:04,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:04,528 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:04,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-23 22:56:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:04,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-23 22:56:04,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:04,975 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 33 treesize of output 28 [2024-11-23 22:56:05,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-23 22:56:07,101 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 60 treesize of output 48 [2024-11-23 22:56:07,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:07,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 46 [2024-11-23 22:56:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:56:07,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:07,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:07,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691184932] [2024-11-23 22:56:07,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691184932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:07,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:07,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:56:07,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406400658] [2024-11-23 22:56:07,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:07,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:56:07,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:07,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:56:07,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:56:07,225 INFO L87 Difference]: Start difference. First operand 190 states and 216 transitions. Second operand has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 16 states have internal predecessors, (62), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:56:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:10,850 INFO L93 Difference]: Finished difference Result 438 states and 498 transitions. [2024-11-23 22:56:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 22:56:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 16 states have internal predecessors, (62), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-23 22:56:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:10,853 INFO L225 Difference]: With dead ends: 438 [2024-11-23 22:56:10,853 INFO L226 Difference]: Without dead ends: 251 [2024-11-23 22:56:10,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:56:10,856 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 170 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:10,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 860 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-23 22:56:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-23 22:56:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 172. [2024-11-23 22:56:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 150 states have (on average 1.1133333333333333) internal successors, (167), 150 states have internal predecessors, (167), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 195 transitions. [2024-11-23 22:56:10,905 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 195 transitions. Word has length 111 [2024-11-23 22:56:10,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:10,905 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 195 transitions. [2024-11-23 22:56:10,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 16 states have internal predecessors, (62), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 22:56:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 195 transitions. [2024-11-23 22:56:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 22:56:10,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:10,907 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:10,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-23 22:56:11,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:11,108 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:11,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash 485246575, now seen corresponding path program 1 times [2024-11-23 22:56:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:11,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523134066] [2024-11-23 22:56:11,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:11,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:11,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:11,112 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:11,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-23 22:56:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:11,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 22:56:11,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:11,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 22:56:11,688 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 26 treesize of output 25 [2024-11-23 22:56:12,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:12,072 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 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-23 22:56:13,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:13,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-11-23 22:56:14,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:14,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 63 [2024-11-23 22:56:15,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:15,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 42 [2024-11-23 22:56:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 140 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-23 22:56:15,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:56:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:56:18,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:18,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523134066] [2024-11-23 22:56:18,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523134066] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:56:18,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:56:18,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 21 [2024-11-23 22:56:18,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159731656] [2024-11-23 22:56:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:18,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:56:18,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:18,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:56:18,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:56:18,014 INFO L87 Difference]: Start difference. First operand 172 states and 195 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:20,122 INFO L93 Difference]: Finished difference Result 390 states and 444 transitions. [2024-11-23 22:56:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:56:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-23 22:56:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:20,124 INFO L225 Difference]: With dead ends: 390 [2024-11-23 22:56:20,124 INFO L226 Difference]: Without dead ends: 221 [2024-11-23 22:56:20,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:56:20,125 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 44 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:20,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1027 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 22:56:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-23 22:56:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 190. [2024-11-23 22:56:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 168 states have (on average 1.1071428571428572) internal successors, (186), 168 states have internal predecessors, (186), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 214 transitions. [2024-11-23 22:56:20,167 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 214 transitions. Word has length 111 [2024-11-23 22:56:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:20,167 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 214 transitions. [2024-11-23 22:56:20,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 214 transitions. [2024-11-23 22:56:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 22:56:20,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:20,169 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:20,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-23 22:56:20,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:20,370 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:20,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1838370411, now seen corresponding path program 1 times [2024-11-23 22:56:20,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:20,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135001120] [2024-11-23 22:56:20,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:20,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:20,373 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:20,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-23 22:56:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:20,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 22:56:20,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:21,123 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 33 treesize of output 26 [2024-11-23 22:56:21,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:21,667 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 1 case distinctions, treesize of input 41 treesize of output 37 [2024-11-23 22:56:22,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:22,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 19 [2024-11-23 22:56:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-23 22:56:22,914 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:56:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:56:25,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135001120] [2024-11-23 22:56:25,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135001120] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:56:25,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:56:25,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 26 [2024-11-23 22:56:25,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859809024] [2024-11-23 22:56:25,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:56:25,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 22:56:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:25,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 22:56:25,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:56:25,432 INFO L87 Difference]: Start difference. First operand 190 states and 214 transitions. Second operand has 26 states, 24 states have (on average 3.9583333333333335) internal successors, (95), 26 states have internal predecessors, (95), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-23 22:56:39,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:39,105 INFO L93 Difference]: Finished difference Result 690 states and 780 transitions. [2024-11-23 22:56:39,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-23 22:56:39,106 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.9583333333333335) internal successors, (95), 26 states have internal predecessors, (95), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 113 [2024-11-23 22:56:39,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:39,108 INFO L225 Difference]: With dead ends: 690 [2024-11-23 22:56:39,108 INFO L226 Difference]: Without dead ends: 503 [2024-11-23 22:56:39,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1199 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=686, Invalid=4144, Unknown=0, NotChecked=0, Total=4830 [2024-11-23 22:56:39,111 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 815 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:39,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1871 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-23 22:56:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-23 22:56:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 194. [2024-11-23 22:56:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 172 states have (on average 1.1046511627906976) internal successors, (190), 172 states have internal predecessors, (190), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 218 transitions. [2024-11-23 22:56:39,150 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 218 transitions. Word has length 113 [2024-11-23 22:56:39,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:39,151 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 218 transitions. [2024-11-23 22:56:39,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.9583333333333335) internal successors, (95), 26 states have internal predecessors, (95), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-23 22:56:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 218 transitions. [2024-11-23 22:56:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 22:56:39,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:39,152 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:39,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-23 22:56:39,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:39,353 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:39,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:39,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1121494556, now seen corresponding path program 1 times [2024-11-23 22:56:39,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:39,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261144692] [2024-11-23 22:56:39,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:39,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:39,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:39,355 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:39,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-23 22:56:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:39,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 22:56:39,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:40,896 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 90 treesize of output 48 [2024-11-23 22:56:42,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:42,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 45 [2024-11-23 22:56:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 2 proven. 102 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 22:56:43,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:56:49,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:49,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261144692] [2024-11-23 22:56:49,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261144692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:56:49,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1608272540] [2024-11-23 22:56:49,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:49,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:56:49,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:56:49,959 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:56:49,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-23 22:56:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:50,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:56:50,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:51,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:51,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 36 [2024-11-23 22:56:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:56:51,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1608272540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:51,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:56:51,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-11-23 22:56:51,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705778734] [2024-11-23 22:56:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:51,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:56:51,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:51,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:56:51,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:56:51,674 INFO L87 Difference]: Start difference. First operand 194 states and 218 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:52,375 INFO L93 Difference]: Finished difference Result 424 states and 477 transitions. [2024-11-23 22:56:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:56:52,376 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2024-11-23 22:56:52,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:52,377 INFO L225 Difference]: With dead ends: 424 [2024-11-23 22:56:52,377 INFO L226 Difference]: Without dead ends: 233 [2024-11-23 22:56:52,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 235 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:56:52,378 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 52 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:52,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 444 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:56:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-23 22:56:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 188. [2024-11-23 22:56:52,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 166 states have (on average 1.0903614457831325) internal successors, (181), 166 states have internal predecessors, (181), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:52,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 209 transitions. [2024-11-23 22:56:52,426 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 209 transitions. Word has length 113 [2024-11-23 22:56:52,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:52,427 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 209 transitions. [2024-11-23 22:56:52,428 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:52,428 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 209 transitions. [2024-11-23 22:56:52,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 22:56:52,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:52,429 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:52,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-23 22:56:52,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-23 22:56:52,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:52,829 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:52,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:52,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1936424290, now seen corresponding path program 1 times [2024-11-23 22:56:52,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:52,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870219255] [2024-11-23 22:56:52,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:52,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:52,832 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:52,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-23 22:56:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:53,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 22:56:53,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:53,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:56:54,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:54,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 46 [2024-11-23 22:56:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:56:54,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:54,337 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:54,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870219255] [2024-11-23 22:56:54,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870219255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:54,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:54,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:56:54,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412124481] [2024-11-23 22:56:54,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:54,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:56:54,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:54,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:56:54,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:56:54,339 INFO L87 Difference]: Start difference. First operand 188 states and 209 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:56,307 INFO L93 Difference]: Finished difference Result 506 states and 566 transitions. [2024-11-23 22:56:56,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:56:56,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2024-11-23 22:56:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:56,310 INFO L225 Difference]: With dead ends: 506 [2024-11-23 22:56:56,310 INFO L226 Difference]: Without dead ends: 321 [2024-11-23 22:56:56,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:56:56,311 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 175 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:56,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1030 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:56:56,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-23 22:56:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 164. [2024-11-23 22:56:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 142 states have (on average 1.0845070422535212) internal successors, (154), 142 states have internal predecessors, (154), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:56:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 182 transitions. [2024-11-23 22:56:56,346 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 182 transitions. Word has length 113 [2024-11-23 22:56:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:56,346 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 182 transitions. [2024-11-23 22:56:56,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:56:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 182 transitions. [2024-11-23 22:56:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:56:56,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:56,348 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:56,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-23 22:56:56,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:56,548 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:56,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:56,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2127608003, now seen corresponding path program 1 times [2024-11-23 22:56:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:56,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928478038] [2024-11-23 22:56:56,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:56,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:56,551 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:56,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-23 22:56:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:56,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 22:56:56,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:59,005 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 119 treesize of output 59 [2024-11-23 22:57:00,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:00,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 56 [2024-11-23 22:57:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 98 proven. 6 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 22:57:00,948 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:57:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:57:02,572 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:02,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928478038] [2024-11-23 22:57:02,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928478038] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:57:02,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:57:02,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2024-11-23 22:57:02,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898464338] [2024-11-23 22:57:02,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:02,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:57:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:02,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:57:02,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:57:02,574 INFO L87 Difference]: Start difference. First operand 164 states and 182 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:03,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:03,567 INFO L93 Difference]: Finished difference Result 374 states and 417 transitions. [2024-11-23 22:57:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:57:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-23 22:57:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:03,571 INFO L225 Difference]: With dead ends: 374 [2024-11-23 22:57:03,571 INFO L226 Difference]: Without dead ends: 213 [2024-11-23 22:57:03,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:57:03,572 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 105 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:03,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 593 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:57:03,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-23 22:57:03,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 174. [2024-11-23 22:57:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 152 states have (on average 1.0789473684210527) internal successors, (164), 152 states have internal predecessors, (164), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:57:03,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 192 transitions. [2024-11-23 22:57:03,598 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 192 transitions. Word has length 115 [2024-11-23 22:57:03,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:03,598 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 192 transitions. [2024-11-23 22:57:03,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:03,598 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 192 transitions. [2024-11-23 22:57:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:57:03,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:03,599 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:03,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-23 22:57:03,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:03,799 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:03,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:03,800 INFO L85 PathProgramCache]: Analyzing trace with hash -288292730, now seen corresponding path program 1 times [2024-11-23 22:57:03,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:03,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425930325] [2024-11-23 22:57:03,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:03,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:03,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:03,802 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:03,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-23 22:57:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:04,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 22:57:04,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:04,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 22:57:04,643 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 33 treesize of output 26 [2024-11-23 22:57:04,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:04,807 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 1 case distinctions, treesize of input 44 treesize of output 29 [2024-11-23 22:57:05,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:05,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 35 [2024-11-23 22:57:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-23 22:57:05,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:57:06,779 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:57:06,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:06,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425930325] [2024-11-23 22:57:06,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425930325] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:57:06,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:57:06,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-11-23 22:57:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860282152] [2024-11-23 22:57:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:06,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:57:06,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:06,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:57:06,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:57:06,780 INFO L87 Difference]: Start difference. First operand 174 states and 192 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:08,273 INFO L93 Difference]: Finished difference Result 287 states and 313 transitions. [2024-11-23 22:57:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:57:08,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-23 22:57:08,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:08,276 INFO L225 Difference]: With dead ends: 287 [2024-11-23 22:57:08,276 INFO L226 Difference]: Without dead ends: 285 [2024-11-23 22:57:08,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:57:08,277 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 48 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:08,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 602 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:57:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-23 22:57:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 249. [2024-11-23 22:57:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 227 states have (on average 1.066079295154185) internal successors, (242), 227 states have internal predecessors, (242), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:57:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 270 transitions. [2024-11-23 22:57:08,307 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 270 transitions. Word has length 115 [2024-11-23 22:57:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:08,308 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 270 transitions. [2024-11-23 22:57:08,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 270 transitions. [2024-11-23 22:57:08,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:57:08,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:08,309 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:08,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-23 22:57:08,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:08,510 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:08,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash 413307144, now seen corresponding path program 1 times [2024-11-23 22:57:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:08,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512663918] [2024-11-23 22:57:08,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:08,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:08,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:08,512 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:08,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-23 22:57:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:08,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:57:08,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:09,126 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 26 treesize of output 14 [2024-11-23 22:57:09,140 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 17 treesize of output 9 [2024-11-23 22:57:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:57:09,241 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:09,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:09,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512663918] [2024-11-23 22:57:09,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512663918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:09,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:09,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:57:09,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595827959] [2024-11-23 22:57:09,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:09,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:57:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:09,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:57:09,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:57:09,243 INFO L87 Difference]: Start difference. First operand 249 states and 270 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:10,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:10,026 INFO L93 Difference]: Finished difference Result 600 states and 654 transitions. [2024-11-23 22:57:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:57:10,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-23 22:57:10,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:10,028 INFO L225 Difference]: With dead ends: 600 [2024-11-23 22:57:10,028 INFO L226 Difference]: Without dead ends: 354 [2024-11-23 22:57:10,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:57:10,029 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 69 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:10,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 605 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:57:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-23 22:57:10,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 273. [2024-11-23 22:57:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 251 states have (on average 1.0637450199203187) internal successors, (267), 251 states have internal predecessors, (267), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:57:10,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 295 transitions. [2024-11-23 22:57:10,071 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 295 transitions. Word has length 115 [2024-11-23 22:57:10,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:10,072 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 295 transitions. [2024-11-23 22:57:10,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:10,072 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 295 transitions. [2024-11-23 22:57:10,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:57:10,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:10,073 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:10,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-23 22:57:10,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:10,274 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:10,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash -856144711, now seen corresponding path program 1 times [2024-11-23 22:57:10,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:10,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095209422] [2024-11-23 22:57:10,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:10,275 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:10,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:10,276 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:10,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-23 22:57:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:10,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:57:10,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:11,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:57:12,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:12,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 57 [2024-11-23 22:57:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:57:12,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:12,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:12,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095209422] [2024-11-23 22:57:12,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095209422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:12,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:12,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:57:12,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546781622] [2024-11-23 22:57:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:12,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:57:12,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:12,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:57:12,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:57:12,854 INFO L87 Difference]: Start difference. First operand 273 states and 295 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:15,654 INFO L93 Difference]: Finished difference Result 659 states and 720 transitions. [2024-11-23 22:57:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:57:15,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-23 22:57:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:15,657 INFO L225 Difference]: With dead ends: 659 [2024-11-23 22:57:15,657 INFO L226 Difference]: Without dead ends: 389 [2024-11-23 22:57:15,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:57:15,658 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 225 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:15,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 873 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 22:57:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-23 22:57:15,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 253. [2024-11-23 22:57:15,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 231 states have (on average 1.0606060606060606) internal successors, (245), 231 states have internal predecessors, (245), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:57:15,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2024-11-23 22:57:15,704 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 115 [2024-11-23 22:57:15,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:15,704 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2024-11-23 22:57:15,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2024-11-23 22:57:15,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:57:15,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:15,705 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:15,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-23 22:57:15,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:15,906 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:15,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:15,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1245674055, now seen corresponding path program 1 times [2024-11-23 22:57:15,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:15,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047155582] [2024-11-23 22:57:15,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:15,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:15,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:15,908 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:15,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-23 22:57:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:16,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:57:16,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:16,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 22:57:16,289 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 26 treesize of output 14 [2024-11-23 22:57:16,510 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 43 treesize of output 25 [2024-11-23 22:57:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:57:16,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:16,793 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:16,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047155582] [2024-11-23 22:57:16,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047155582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:16,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:16,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:57:16,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688349204] [2024-11-23 22:57:16,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:16,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:57:16,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:16,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:57:16,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:57:16,794 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:18,183 INFO L93 Difference]: Finished difference Result 416 states and 452 transitions. [2024-11-23 22:57:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:57:18,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-23 22:57:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:18,186 INFO L225 Difference]: With dead ends: 416 [2024-11-23 22:57:18,186 INFO L226 Difference]: Without dead ends: 414 [2024-11-23 22:57:18,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:57:18,187 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 78 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:18,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 814 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:57:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-23 22:57:18,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 253. [2024-11-23 22:57:18,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 231 states have (on average 1.0606060606060606) internal successors, (245), 231 states have internal predecessors, (245), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 22:57:18,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2024-11-23 22:57:18,221 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 115 [2024-11-23 22:57:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:18,222 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2024-11-23 22:57:18,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:18,222 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2024-11-23 22:57:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:57:18,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:18,223 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:18,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-23 22:57:18,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:18,423 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:18,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash 593641218, now seen corresponding path program 1 times [2024-11-23 22:57:18,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:18,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969272098] [2024-11-23 22:57:18,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:18,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:18,426 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:18,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-23 22:57:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:18,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 22:57:18,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:19,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 22:57:20,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:20,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 46 [2024-11-23 22:57:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 22:57:20,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:20,559 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969272098] [2024-11-23 22:57:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969272098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:57:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144176487] [2024-11-23 22:57:20,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:20,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:57:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:20,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:57:20,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:57:20,560 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:23,121 INFO L93 Difference]: Finished difference Result 630 states and 686 transitions. [2024-11-23 22:57:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:57:23,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-23 22:57:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:23,123 INFO L225 Difference]: With dead ends: 630 [2024-11-23 22:57:23,123 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 22:57:23,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:57:23,124 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 141 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:23,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1036 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:57:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 22:57:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 22:57:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:57:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 22:57:23,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2024-11-23 22:57:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:23,129 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:57:23,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-23 22:57:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 22:57:23,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 22:57:23,132 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:57:23,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-23 22:57:23,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1986b1-b7a6-41e3-b581-5aaecbca0e46/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:23,336 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:23,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.