./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1 --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 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:09:20,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:09:20,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:09:20,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:09:20,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:09:20,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:09:20,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:09:20,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:09:20,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:09:20,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:09:20,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:09:20,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:09:20,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:09:20,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:09:20,336 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:09:20,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:09:20,337 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:09:20,338 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:20,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:09:20,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:20,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:09:20,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:09:20,339 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_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1 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 -> 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c [2024-12-02 10:09:20,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:09:20,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:09:20,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:09:20,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:09:20,585 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:09:20,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-12-02 10:09:23,258 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/5ba885ef3/6b480cd832924e3ea343cf3f4af28f5c/FLAGfb7f1a924 [2024-12-02 10:09:23,437 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:09:23,437 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-12-02 10:09:23,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/5ba885ef3/6b480cd832924e3ea343cf3f4af28f5c/FLAGfb7f1a924 [2024-12-02 10:09:23,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/5ba885ef3/6b480cd832924e3ea343cf3f4af28f5c [2024-12-02 10:09:23,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:09:23,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:09:23,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:09:23,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:09:23,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:09:23,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:23" (1/1) ... [2024-12-02 10:09:23,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1082c9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:23, skipping insertion in model container [2024-12-02 10:09:23,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:23" (1/1) ... [2024-12-02 10:09:23,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:09:23,963 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_a6ca973e-a10e-4215-a82c-2b263d480b6c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-12-02 10:09:24,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:09:24,033 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:09:24,044 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_a6ca973e-a10e-4215-a82c-2b263d480b6c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-12-02 10:09:24,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:09:24,094 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:09:24,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24 WrapperNode [2024-12-02 10:09:24,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:09:24,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:09:24,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:09:24,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:09:24,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,145 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2024-12-02 10:09:24,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:09:24,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:09:24,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:09:24,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:09:24,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,182 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 20, 22, 33, 33]. 30 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 2, 2, 4, 2]. The 16 writes are split as follows [0, 2, 5, 6, 3]. [2024-12-02 10:09:24,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:09:24,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:09:24,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:09:24,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:09:24,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (1/1) ... [2024-12-02 10:09:24,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:24,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:24,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:09:24,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:09:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:09:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:09:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:09:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:09:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:09:24,409 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:09:24,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:09:24,842 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-12-02 10:09:24,842 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:09:24,853 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:09:24,853 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:09:24,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:24 BoogieIcfgContainer [2024-12-02 10:09:24,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:09:24,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:09:24,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:09:24,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:09:24,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:23" (1/3) ... [2024-12-02 10:09:24,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c0b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:24, skipping insertion in model container [2024-12-02 10:09:24,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:24" (2/3) ... [2024-12-02 10:09:24,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c0b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:24, skipping insertion in model container [2024-12-02 10:09:24,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:24" (3/3) ... [2024-12-02 10:09:24,863 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-31.i [2024-12-02 10:09:24,878 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:09:24,879 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-31.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:09:24,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:09:24,950 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;@398cddab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:09:24,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:09:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 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) [2024-12-02 10:09:24,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:09:24,960 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:24,960 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] [2024-12-02 10:09:24,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:24,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:24,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1922605135, now seen corresponding path program 1 times [2024-12-02 10:09:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:24,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361900032] [2024-12-02 10:09:24,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 10:09:25,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:25,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361900032] [2024-12-02 10:09:25,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361900032] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:25,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010344857] [2024-12-02 10:09:25,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:25,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:09:25,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:25,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:09:25,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:09:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:25,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:09:25,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 10:09:25,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010344857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:25,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:25,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 10:09:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887848868] [2024-12-02 10:09:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:25,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:09:25,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:25,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:09:25,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:09:25,464 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-12-02 10:09:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:25,488 INFO L93 Difference]: Finished difference Result 167 states and 261 transitions. [2024-12-02 10:09:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:09:25,490 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 94 [2024-12-02 10:09:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:25,496 INFO L225 Difference]: With dead ends: 167 [2024-12-02 10:09:25,496 INFO L226 Difference]: Without dead ends: 83 [2024-12-02 10:09:25,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:09:25,501 INFO L435 NwaCegarLoop]: 121 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, 121 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 [2024-12-02 10:09:25,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-12-02 10:09:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-12-02 10:09:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 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) [2024-12-02 10:09:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2024-12-02 10:09:25,530 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 94 [2024-12-02 10:09:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:25,531 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2024-12-02 10:09:25,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-12-02 10:09:25,531 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2024-12-02 10:09:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:09:25,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:25,535 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] [2024-12-02 10:09:25,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:09:25,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 10:09:25,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:25,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash 434162283, now seen corresponding path program 1 times [2024-12-02 10:09:25,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:25,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316717798] [2024-12-02 10:09:25,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:26,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:26,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316717798] [2024-12-02 10:09:26,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316717798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:26,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:26,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:09:26,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301153153] [2024-12-02 10:09:26,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:26,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:09:26,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:26,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:09:26,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:26,100 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-12-02 10:09:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:26,124 INFO L93 Difference]: Finished difference Result 163 states and 239 transitions. [2024-12-02 10:09:26,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:09:26,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 94 [2024-12-02 10:09:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:26,126 INFO L225 Difference]: With dead ends: 163 [2024-12-02 10:09:26,126 INFO L226 Difference]: Without dead ends: 83 [2024-12-02 10:09:26,127 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 [2024-12-02 10:09:26,128 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 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 [2024-12-02 10:09:26,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-12-02 10:09:26,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-12-02 10:09:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4) internal successors, (98), 70 states have internal predecessors, (98), 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) [2024-12-02 10:09:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2024-12-02 10:09:26,137 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 94 [2024-12-02 10:09:26,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:26,139 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2024-12-02 10:09:26,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-12-02 10:09:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2024-12-02 10:09:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:09:26,141 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:26,141 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] [2024-12-02 10:09:26,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:09:26,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:26,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1154185619, now seen corresponding path program 1 times [2024-12-02 10:09:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:26,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446390730] [2024-12-02 10:09:26,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:28,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:28,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446390730] [2024-12-02 10:09:28,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446390730] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:28,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:28,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:09:28,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316766106] [2024-12-02 10:09:28,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:28,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:09:28,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:28,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:09:28,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:09:28,073 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:28,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:28,434 INFO L93 Difference]: Finished difference Result 222 states and 320 transitions. [2024-12-02 10:09:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:09:28,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (11), 1 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 94 [2024-12-02 10:09:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:28,436 INFO L225 Difference]: With dead ends: 222 [2024-12-02 10:09:28,436 INFO L226 Difference]: Without dead ends: 142 [2024-12-02 10:09:28,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:09:28,438 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 79 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:28,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 817 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:09:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-12-02 10:09:28,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2024-12-02 10:09:28,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.3898305084745763) internal successors, (164), 119 states have internal predecessors, (164), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 200 transitions. [2024-12-02 10:09:28,456 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 200 transitions. Word has length 94 [2024-12-02 10:09:28,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:28,457 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 200 transitions. [2024-12-02 10:09:28,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:28,457 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 200 transitions. [2024-12-02 10:09:28,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:28,459 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:28,459 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] [2024-12-02 10:09:28,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:09:28,460 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:28,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:28,460 INFO L85 PathProgramCache]: Analyzing trace with hash -463624664, now seen corresponding path program 1 times [2024-12-02 10:09:28,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:28,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690632612] [2024-12-02 10:09:28,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:28,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:29,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690632612] [2024-12-02 10:09:29,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690632612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:29,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:29,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:09:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575924190] [2024-12-02 10:09:29,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:29,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:29,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:29,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:29,067 INFO L87 Difference]: Start difference. First operand 139 states and 200 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:29,154 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2024-12-02 10:09:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:09:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 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 96 [2024-12-02 10:09:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:29,157 INFO L225 Difference]: With dead ends: 275 [2024-12-02 10:09:29,157 INFO L226 Difference]: Without dead ends: 139 [2024-12-02 10:09:29,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:29,158 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:29,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:29,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-12-02 10:09:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-12-02 10:09:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 119 states have internal predecessors, (162), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 198 transitions. [2024-12-02 10:09:29,174 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 198 transitions. Word has length 96 [2024-12-02 10:09:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:29,174 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 198 transitions. [2024-12-02 10:09:29,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:29,175 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 198 transitions. [2024-12-02 10:09:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:29,176 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:29,176 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] [2024-12-02 10:09:29,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:09:29,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:29,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash -856651674, now seen corresponding path program 1 times [2024-12-02 10:09:29,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:29,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026301009] [2024-12-02 10:09:29,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:29,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:29,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026301009] [2024-12-02 10:09:29,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026301009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:29,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:29,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:09:29,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229951902] [2024-12-02 10:09:29,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:29,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:09:29,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:29,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:09:29,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:09:29,887 INFO L87 Difference]: Start difference. First operand 139 states and 198 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-12-02 10:09:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:30,130 INFO L93 Difference]: Finished difference Result 304 states and 433 transitions. [2024-12-02 10:09:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:09:30,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 96 [2024-12-02 10:09:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:30,132 INFO L225 Difference]: With dead ends: 304 [2024-12-02 10:09:30,132 INFO L226 Difference]: Without dead ends: 168 [2024-12-02 10:09:30,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:09:30,134 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 86 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:30,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 674 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:09:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-12-02 10:09:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 113. [2024-12-02 10:09:30,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 93 states have internal predecessors, (123), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:30,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 159 transitions. [2024-12-02 10:09:30,149 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 159 transitions. Word has length 96 [2024-12-02 10:09:30,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:30,149 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 159 transitions. [2024-12-02 10:09:30,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-12-02 10:09:30,149 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 159 transitions. [2024-12-02 10:09:30,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:30,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:30,151 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] [2024-12-02 10:09:30,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:09:30,151 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:30,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash 916608243, now seen corresponding path program 1 times [2024-12-02 10:09:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:30,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531445479] [2024-12-02 10:09:30,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:30,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:30,230 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:30,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:30,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531445479] [2024-12-02 10:09:30,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531445479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:30,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:30,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:09:30,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78053681] [2024-12-02 10:09:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:30,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:09:30,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:30,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:09:30,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:30,232 INFO L87 Difference]: Start difference. First operand 113 states and 159 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 10:09:30,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:30,261 INFO L93 Difference]: Finished difference Result 204 states and 287 transitions. [2024-12-02 10:09:30,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:09:30,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 96 [2024-12-02 10:09:30,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:30,263 INFO L225 Difference]: With dead ends: 204 [2024-12-02 10:09:30,263 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 10:09:30,264 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 [2024-12-02 10:09:30,265 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:30,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 10:09:30,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 10:09:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 94 states have internal predecessors, (124), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2024-12-02 10:09:30,282 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 96 [2024-12-02 10:09:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:30,282 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2024-12-02 10:09:30,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 10:09:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2024-12-02 10:09:30,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:30,284 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:30,284 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] [2024-12-02 10:09:30,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:09:30,285 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:30,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:30,285 INFO L85 PathProgramCache]: Analyzing trace with hash 329802229, now seen corresponding path program 1 times [2024-12-02 10:09:30,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:30,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943973559] [2024-12-02 10:09:30,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:30,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:30,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:30,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943973559] [2024-12-02 10:09:30,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943973559] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:30,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:30,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:09:30,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912115109] [2024-12-02 10:09:30,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:30,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:09:30,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:30,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:09:30,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:09:30,634 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:30,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:30,792 INFO L93 Difference]: Finished difference Result 251 states and 345 transitions. [2024-12-02 10:09:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:30,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 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 96 [2024-12-02 10:09:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:30,795 INFO L225 Difference]: With dead ends: 251 [2024-12-02 10:09:30,795 INFO L226 Difference]: Without dead ends: 160 [2024-12-02 10:09:30,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:09:30,796 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 57 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:30,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 613 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:30,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-12-02 10:09:30,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-12-02 10:09:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 132 states have (on average 1.3257575757575757) internal successors, (175), 134 states have internal predecessors, (175), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:09:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 215 transitions. [2024-12-02 10:09:30,817 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 215 transitions. Word has length 96 [2024-12-02 10:09:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:30,817 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 215 transitions. [2024-12-02 10:09:30,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 215 transitions. [2024-12-02 10:09:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 10:09:30,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:30,819 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] [2024-12-02 10:09:30,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:09:30,819 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:30,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1874819353, now seen corresponding path program 1 times [2024-12-02 10:09:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94476386] [2024-12-02 10:09:30,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:31,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:31,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94476386] [2024-12-02 10:09:31,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94476386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:31,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:31,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:09:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332435999] [2024-12-02 10:09:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:31,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:09:31,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:31,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:09:31,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:09:31,129 INFO L87 Difference]: Start difference. First operand 157 states and 215 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:31,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:31,283 INFO L93 Difference]: Finished difference Result 287 states and 388 transitions. [2024-12-02 10:09:31,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:31,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 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 97 [2024-12-02 10:09:31,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:31,285 INFO L225 Difference]: With dead ends: 287 [2024-12-02 10:09:31,285 INFO L226 Difference]: Without dead ends: 157 [2024-12-02 10:09:31,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:09:31,286 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 46 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:31,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 534 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-12-02 10:09:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 122. [2024-12-02 10:09:31,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.292929292929293) internal successors, (128), 100 states have internal predecessors, (128), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 164 transitions. [2024-12-02 10:09:31,301 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 164 transitions. Word has length 97 [2024-12-02 10:09:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:31,302 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 164 transitions. [2024-12-02 10:09:31,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:09:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 164 transitions. [2024-12-02 10:09:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 10:09:31,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:31,303 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] [2024-12-02 10:09:31,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:09:31,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:31,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash -421311151, now seen corresponding path program 1 times [2024-12-02 10:09:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158506394] [2024-12-02 10:09:31,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:31,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:31,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158506394] [2024-12-02 10:09:31,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158506394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:31,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:31,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:09:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102127922] [2024-12-02 10:09:31,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:31,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:09:31,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:31,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:09:31,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:09:31,771 INFO L87 Difference]: Start difference. First operand 122 states and 164 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2024-12-02 10:09:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:31,973 INFO L93 Difference]: Finished difference Result 307 states and 411 transitions. [2024-12-02 10:09:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:09:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 98 [2024-12-02 10:09:31,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:31,975 INFO L225 Difference]: With dead ends: 307 [2024-12-02 10:09:31,975 INFO L226 Difference]: Without dead ends: 212 [2024-12-02 10:09:31,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:09:31,976 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 91 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:31,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 732 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-12-02 10:09:32,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2024-12-02 10:09:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 174 states have (on average 1.2988505747126438) internal successors, (226), 176 states have internal predecessors, (226), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2024-12-02 10:09:32,003 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 98 [2024-12-02 10:09:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:32,004 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2024-12-02 10:09:32,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2024-12-02 10:09:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2024-12-02 10:09:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:32,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:32,005 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] [2024-12-02 10:09:32,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:09:32,005 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:32,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:32,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1036545903, now seen corresponding path program 1 times [2024-12-02 10:09:32,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:32,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212533567] [2024-12-02 10:09:32,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:32,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:32,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212533567] [2024-12-02 10:09:32,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212533567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:32,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:09:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546175348] [2024-12-02 10:09:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:32,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:32,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:32,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:32,215 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:32,311 INFO L93 Difference]: Finished difference Result 466 states and 626 transitions. [2024-12-02 10:09:32,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:32,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:32,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:32,314 INFO L225 Difference]: With dead ends: 466 [2024-12-02 10:09:32,314 INFO L226 Difference]: Without dead ends: 284 [2024-12-02 10:09:32,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:09:32,315 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 89 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:32,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 364 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:32,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-12-02 10:09:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 217. [2024-12-02 10:09:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 182 states have (on average 1.2857142857142858) internal successors, (234), 184 states have internal predecessors, (234), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 288 transitions. [2024-12-02 10:09:32,349 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 288 transitions. Word has length 99 [2024-12-02 10:09:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:32,350 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 288 transitions. [2024-12-02 10:09:32,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 288 transitions. [2024-12-02 10:09:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:32,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:32,351 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] [2024-12-02 10:09:32,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:09:32,351 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:32,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1365186479, now seen corresponding path program 1 times [2024-12-02 10:09:32,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:32,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131135757] [2024-12-02 10:09:32,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:32,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:09:32,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:32,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131135757] [2024-12-02 10:09:32,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131135757] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:32,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291508968] [2024-12-02 10:09:32,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:32,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:09:32,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:32,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:09:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:09:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:32,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:09:32,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:32,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:32,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291508968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:32,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:32,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-12-02 10:09:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965455398] [2024-12-02 10:09:32,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:32,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:32,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:32,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:32,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:09:32,761 INFO L87 Difference]: Start difference. First operand 217 states and 288 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:32,809 INFO L93 Difference]: Finished difference Result 413 states and 548 transitions. [2024-12-02 10:09:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:09:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:32,811 INFO L225 Difference]: With dead ends: 413 [2024-12-02 10:09:32,811 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 10:09:32,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:09:32,813 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:32,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 10:09:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-12-02 10:09:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 184 states have (on average 1.2826086956521738) internal successors, (236), 186 states have internal predecessors, (236), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 290 transitions. [2024-12-02 10:09:32,837 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 290 transitions. Word has length 99 [2024-12-02 10:09:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:32,837 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 290 transitions. [2024-12-02 10:09:32,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 290 transitions. [2024-12-02 10:09:32,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:32,839 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:32,839 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] [2024-12-02 10:09:32,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:09:33,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:09:33,039 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:33,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1572870353, now seen corresponding path program 1 times [2024-12-02 10:09:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028470216] [2024-12-02 10:09:33,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:33,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:33,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028470216] [2024-12-02 10:09:33,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028470216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:33,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:33,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:09:33,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388599800] [2024-12-02 10:09:33,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:33,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:09:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:33,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:09:33,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:09:33,205 INFO L87 Difference]: Start difference. First operand 219 states and 290 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-12-02 10:09:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:33,343 INFO L93 Difference]: Finished difference Result 546 states and 718 transitions. [2024-12-02 10:09:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:09:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:33,345 INFO L225 Difference]: With dead ends: 546 [2024-12-02 10:09:33,345 INFO L226 Difference]: Without dead ends: 354 [2024-12-02 10:09:33,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:09:33,346 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 71 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:33,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 791 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:33,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-12-02 10:09:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 227. [2024-12-02 10:09:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 192 states have (on average 1.2916666666666667) internal successors, (248), 194 states have internal predecessors, (248), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 302 transitions. [2024-12-02 10:09:33,366 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 302 transitions. Word has length 99 [2024-12-02 10:09:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:33,367 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 302 transitions. [2024-12-02 10:09:33,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-12-02 10:09:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 302 transitions. [2024-12-02 10:09:33,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:33,368 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:33,368 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] [2024-12-02 10:09:33,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:09:33,369 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:33,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:33,369 INFO L85 PathProgramCache]: Analyzing trace with hash 551801999, now seen corresponding path program 1 times [2024-12-02 10:09:33,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:33,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989730704] [2024-12-02 10:09:33,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:33,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:33,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:33,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989730704] [2024-12-02 10:09:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989730704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:09:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382950316] [2024-12-02 10:09:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:33,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:09:33,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:33,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:09:33,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:09:33,594 INFO L87 Difference]: Start difference. First operand 227 states and 302 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-12-02 10:09:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:33,836 INFO L93 Difference]: Finished difference Result 538 states and 707 transitions. [2024-12-02 10:09:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:09:33,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:33,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:33,839 INFO L225 Difference]: With dead ends: 538 [2024-12-02 10:09:33,839 INFO L226 Difference]: Without dead ends: 338 [2024-12-02 10:09:33,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:09:33,840 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 132 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:33,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 573 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:09:33,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-12-02 10:09:33,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 191. [2024-12-02 10:09:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 164 states have (on average 1.2865853658536586) internal successors, (211), 165 states have internal predecessors, (211), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:09:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 251 transitions. [2024-12-02 10:09:33,866 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 251 transitions. Word has length 99 [2024-12-02 10:09:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:33,867 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 251 transitions. [2024-12-02 10:09:33,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-12-02 10:09:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 251 transitions. [2024-12-02 10:09:33,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:33,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:33,868 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] [2024-12-02 10:09:33,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:09:33,868 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:33,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:33,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2001270962, now seen corresponding path program 1 times [2024-12-02 10:09:33,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:33,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141378945] [2024-12-02 10:09:33,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:33,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:09:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354855523] [2024-12-02 10:09:33,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:33,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:09:33,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:33,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:09:33,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:09:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:34,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 10:09:34,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:34,481 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 25 treesize of output 13 [2024-12-02 10:09:34,594 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 29 treesize of output 13 [2024-12-02 10:09:34,691 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 25 treesize of output 13 [2024-12-02 10:09:34,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:34,889 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 48 treesize of output 36 [2024-12-02 10:09:34,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:34,973 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 56 treesize of output 49 [2024-12-02 10:09:35,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:35,094 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 68 treesize of output 24 [2024-12-02 10:09:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:35,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:35,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:35,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141378945] [2024-12-02 10:09:35,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:09:35,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354855523] [2024-12-02 10:09:35,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354855523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:35,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:35,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:09:35,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717829474] [2024-12-02 10:09:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:35,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:09:35,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:35,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:09:35,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:09:35,114 INFO L87 Difference]: Start difference. First operand 191 states and 251 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2024-12-02 10:09:35,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:35,575 INFO L93 Difference]: Finished difference Result 510 states and 669 transitions. [2024-12-02 10:09:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:09:35,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:35,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:35,578 INFO L225 Difference]: With dead ends: 510 [2024-12-02 10:09:35,578 INFO L226 Difference]: Without dead ends: 322 [2024-12-02 10:09:35,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:09:35,579 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 147 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:35,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 860 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:09:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-12-02 10:09:35,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 273. [2024-12-02 10:09:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 231 states have (on average 1.2727272727272727) internal successors, (294), 232 states have internal predecessors, (294), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 10:09:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 356 transitions. [2024-12-02 10:09:35,614 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 356 transitions. Word has length 99 [2024-12-02 10:09:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:35,615 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 356 transitions. [2024-12-02 10:09:35,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2024-12-02 10:09:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 356 transitions. [2024-12-02 10:09:35,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 10:09:35,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:35,616 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] [2024-12-02 10:09:35,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:09:35,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 10:09:35,817 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:35,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:35,818 INFO L85 PathProgramCache]: Analyzing trace with hash 325744351, now seen corresponding path program 1 times [2024-12-02 10:09:35,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:35,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636438584] [2024-12-02 10:09:35,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:35,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:09:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:09:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636438584] [2024-12-02 10:09:35,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636438584] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334743899] [2024-12-02 10:09:35,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:35,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:09:35,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:35,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:09:35,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:09:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:36,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:09:36,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:36,208 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:36,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334743899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:36,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:36,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 10:09:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726809192] [2024-12-02 10:09:36,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:36,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:09:36,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:09:36,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:09:36,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:09:36,210 INFO L87 Difference]: Start difference. First operand 273 states and 356 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-12-02 10:09:36,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:36,265 INFO L93 Difference]: Finished difference Result 469 states and 614 transitions. [2024-12-02 10:09:36,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:36,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 100 [2024-12-02 10:09:36,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:36,268 INFO L225 Difference]: With dead ends: 469 [2024-12-02 10:09:36,268 INFO L226 Difference]: Without dead ends: 281 [2024-12-02 10:09:36,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:09:36,269 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:36,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-12-02 10:09:36,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-12-02 10:09:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 236 states have (on average 1.2669491525423728) internal successors, (299), 237 states have internal predecessors, (299), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 10:09:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 361 transitions. [2024-12-02 10:09:36,302 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 361 transitions. Word has length 100 [2024-12-02 10:09:36,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:36,303 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 361 transitions. [2024-12-02 10:09:36,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-12-02 10:09:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 361 transitions. [2024-12-02 10:09:36,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 10:09:36,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:36,304 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] [2024-12-02 10:09:36,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:09:36,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 10:09:36,505 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:36,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:36,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1298355466, now seen corresponding path program 1 times [2024-12-02 10:09:36,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:09:36,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86414104] [2024-12-02 10:09:36,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:36,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:09:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:09:36,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832360217] [2024-12-02 10:09:36,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:36,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:09:36,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:36,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:09:36,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:09:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:09:36,927 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:09:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:09:37,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:09:37,110 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:09:37,111 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:09:37,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:09:37,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 10:09:37,315 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:09:37,367 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:09:37,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:09:37 BoogieIcfgContainer [2024-12-02 10:09:37,370 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:09:37,370 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:09:37,370 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:09:37,370 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:09:37,371 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:24" (3/4) ... [2024-12-02 10:09:37,373 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 10:09:37,374 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:09:37,374 INFO L158 Benchmark]: Toolchain (without parser) took 13569.28ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 92.0MB in the beginning and 170.5MB in the end (delta: -78.4MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. [2024-12-02 10:09:37,375 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 71.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:09:37,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.31ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 77.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:09:37,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.03ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.2MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:09:37,375 INFO L158 Benchmark]: Boogie Preprocessor took 69.21ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 70.1MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:09:37,375 INFO L158 Benchmark]: RCFGBuilder took 637.52ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 42.5MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 10:09:37,376 INFO L158 Benchmark]: TraceAbstraction took 12514.15ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 42.0MB in the beginning and 173.8MB in the end (delta: -131.8MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2024-12-02 10:09:37,376 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 293.6MB. Free memory was 173.8MB in the beginning and 170.5MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:09:37,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 71.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.31ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 77.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.03ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.2MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.21ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 70.1MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 637.52ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 42.5MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12514.15ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 42.0MB in the beginning and 173.8MB in the end (delta: -131.8MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 293.6MB. Free memory was 173.8MB in the beginning and 170.5MB in the end (delta: 3.3MB). 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 someBinaryDOUBLEComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L34] double last_1_double_Array_0_0_ = 0.97; [L35] signed long int last_1_signed_long_int_Array_0_1__0_ = 4; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L102] isInitial = 1 [L103] FCALL initially() [L105] CALL updateLastVariables() [L94] EXPR double_Array_0[0] [L94] last_1_double_Array_0_0_ = double_Array_0[0] [L95] EXPR signed_long_int_Array_0[1][0] [L95] last_1_signed_long_int_Array_0_1__0_ = signed_long_int_Array_0[1][0] [L105] RET updateLastVariables() [L106] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] double_Array_0[1] = __VERIFIER_nondet_double() [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] signed_long_int_Array_0[0][0] = __VERIFIER_nondet_long() [L84] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] CALL assume_abort_if_not(signed_long_int_Array_0[0][0] >= -1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] RET assume_abort_if_not(signed_long_int_Array_0[0][0] >= -1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] CALL assume_abort_if_not(signed_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] RET assume_abort_if_not(signed_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] signed_long_int_Array_0[0][1] = __VERIFIER_nondet_long() [L87] EXPR signed_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_long_int_Array_0[0][1] >= 1073741822) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_long_int_Array_0[0][1] >= 1073741822) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] EXPR signed_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] CALL assume_abort_if_not(signed_long_int_Array_0[0][1] <= 2147483646) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] RET assume_abort_if_not(signed_long_int_Array_0[0][1] <= 2147483646) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L90] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, 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, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L106] RET updateVariables() [L107] CALL step() [L39] EXPR signed_long_int_Array_0[0][1] [L39] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] COND FALSE !(! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) [L46] EXPR unsigned_char_Array_0[0] [L46] unsigned_char_Array_0[1] = unsigned_char_Array_0[0] [L48] EXPR unsigned_char_Array_0[1] [L48] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L48] COND FALSE !(unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR signed_long_int_Array_0[0][1] [L51] signed_long_int_Array_0[1][0] = (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]) [L53] EXPR unsigned_char_Array_0[1] [L53] EXPR signed_long_int_Array_0[0][1] [L53] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L53] COND FALSE !((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) [L64] EXPR double_Array_0[1] [L64] double_Array_0[0] = double_Array_0[1] [L66] BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] COND TRUE BOOL_unsigned_char_Array_0[1] [L67] EXPR signed_long_int_Array_0[0][1] [L67] EXPR unsigned_char_Array_0[1] [L67] EXPR unsigned_char_Array_0[1] [L67] signed_long_int_Array_0[1][1] = ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]) [L107] RET step() [L108] CALL, EXPR property() [L98] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1) [L98] EXPR signed_long_int_Array_0[1][1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))) [L98] EXPR signed_long_int_Array_0[1][0] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR (unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[0] [L98] EXPR (! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1])) [L98] EXPR double_Array_0[0] [L98] EXPR double_Array_0[1] [L98] EXPR ((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98-L99] return (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 16, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 802 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 798 mSDsluCounter, 7963 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5960 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1530 IncrementalHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 2003 mSDtfsCounter, 1530 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 509 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=15, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 496 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 2048 NumberOfCodeBlocks, 2048 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1731 ConstructedInterpolants, 0 QuantifiedInterpolants, 4964 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1438 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 3880/3960 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 [2024-12-02 10:09:37,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1 --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 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:09:39,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:09:39,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 10:09:39,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:09:39,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:09:39,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:09:39,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:09:39,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:09:39,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:09:39,502 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:09:39,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:09:39,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:09:39,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:09:39,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:09:39,503 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:09:39,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:09:39,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:09:39,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:09:39,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:09:39,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:09:39,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:09:39,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:09:39,505 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:09:39,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:39,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:39,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:09:39,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:09:39,507 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 10:09:39,507 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 10:09:39,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:09:39,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:09:39,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:09:39,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:09:39,507 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_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1 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 -> 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c [2024-12-02 10:09:39,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:09:39,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:09:39,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:09:39,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:09:39,762 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:09:39,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-12-02 10:09:42,464 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/f78784bf3/fa3dcf450f5a4ca983c12649d90fd7b2/FLAG9353d9e33 [2024-12-02 10:09:42,644 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:09:42,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-12-02 10:09:42,651 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/f78784bf3/fa3dcf450f5a4ca983c12649d90fd7b2/FLAG9353d9e33 [2024-12-02 10:09:42,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/data/f78784bf3/fa3dcf450f5a4ca983c12649d90fd7b2 [2024-12-02 10:09:42,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:09:42,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:09:42,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:09:42,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:09:42,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:09:42,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:42,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46749db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42, skipping insertion in model container [2024-12-02 10:09:42,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:42,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:09:42,803 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_a6ca973e-a10e-4215-a82c-2b263d480b6c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-12-02 10:09:42,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:09:42,870 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:09:42,881 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_a6ca973e-a10e-4215-a82c-2b263d480b6c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-12-02 10:09:42,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:09:42,943 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:09:42,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42 WrapperNode [2024-12-02 10:09:42,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:09:42,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:09:42,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:09:42,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:09:42,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:42,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:42,994 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-12-02 10:09:42,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:09:42,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:09:42,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:09:42,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:09:43,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,033 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 20, 22, 33, 33]. 30 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 2, 2, 4, 2]. The 16 writes are split as follows [0, 2, 5, 6, 3]. [2024-12-02 10:09:43,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,057 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:09:43,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:09:43,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:09:43,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:09:43,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (1/1) ... [2024-12-02 10:09:43,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:09:43,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:09:43,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:09:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:09:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 10:09:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 10:09:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:09:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:09:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:09:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 10:09:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 10:09:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 10:09:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 10:09:43,265 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:09:43,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:09:43,841 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-12-02 10:09:43,841 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:09:43,851 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:09:43,851 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:09:43,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:43 BoogieIcfgContainer [2024-12-02 10:09:43,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:09:43,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:09:43,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:09:43,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:09:43,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:42" (1/3) ... [2024-12-02 10:09:43,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8a54a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:43, skipping insertion in model container [2024-12-02 10:09:43,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:42" (2/3) ... [2024-12-02 10:09:43,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8a54a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:43, skipping insertion in model container [2024-12-02 10:09:43,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:43" (3/3) ... [2024-12-02 10:09:43,859 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-31.i [2024-12-02 10:09:43,870 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:09:43,871 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-31.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:09:43,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:09:43,921 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;@4817561e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:09:43,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:09:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 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) [2024-12-02 10:09:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:09:43,932 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:43,932 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] [2024-12-02 10:09:43,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:43,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:43,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1922605135, now seen corresponding path program 1 times [2024-12-02 10:09:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:43,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018551555] [2024-12-02 10:09:43,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:43,948 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 [2024-12-02 10:09:43,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:43,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:43,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:44,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:09:44,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-12-02 10:09:44,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:44,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018551555] [2024-12-02 10:09:44,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018551555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:44,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:44,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:09:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801698557] [2024-12-02 10:09:44,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:44,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:09:44,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:44,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:09:44,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:09:44,322 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 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 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-12-02 10:09:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:44,348 INFO L93 Difference]: Finished difference Result 164 states and 256 transitions. [2024-12-02 10:09:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:09:44,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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 94 [2024-12-02 10:09:44,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:44,357 INFO L225 Difference]: With dead ends: 164 [2024-12-02 10:09:44,357 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 10:09:44,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:09:44,363 INFO L435 NwaCegarLoop]: 114 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, 114 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 [2024-12-02 10:09:44,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 10:09:44,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 10:09:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 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) [2024-12-02 10:09:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2024-12-02 10:09:44,397 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 94 [2024-12-02 10:09:44,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:44,397 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2024-12-02 10:09:44,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-12-02 10:09:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2024-12-02 10:09:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:09:44,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:44,401 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] [2024-12-02 10:09:44,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:44,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:44,601 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:44,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:44,602 INFO L85 PathProgramCache]: Analyzing trace with hash 434162283, now seen corresponding path program 1 times [2024-12-02 10:09:44,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:44,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219887516] [2024-12-02 10:09:44,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:44,603 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 [2024-12-02 10:09:44,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:44,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:44,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:09:44,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:44,914 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 [2024-12-02 10:09:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:44,957 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:44,958 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:44,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219887516] [2024-12-02 10:09:44,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219887516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:44,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:44,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:09:44,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110183120] [2024-12-02 10:09:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:44,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:09:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:44,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:09:44,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:44,961 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-12-02 10:09:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:44,989 INFO L93 Difference]: Finished difference Result 157 states and 225 transitions. [2024-12-02 10:09:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:09:44,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 94 [2024-12-02 10:09:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:44,991 INFO L225 Difference]: With dead ends: 157 [2024-12-02 10:09:44,991 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 10:09:44,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:44,993 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 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 [2024-12-02 10:09:44,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:44,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 10:09:45,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 10:09:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 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) [2024-12-02 10:09:45,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-12-02 10:09:45,002 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 94 [2024-12-02 10:09:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:45,003 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-12-02 10:09:45,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-12-02 10:09:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-12-02 10:09:45,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:09:45,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:45,005 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] [2024-12-02 10:09:45,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Forceful destruction successful, exit code 0 [2024-12-02 10:09:45,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:45,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:45,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1154185619, now seen corresponding path program 1 times [2024-12-02 10:09:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:45,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874784816] [2024-12-02 10:09:45,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:45,207 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 [2024-12-02 10:09:45,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:45,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:45,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:45,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:09:45,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:45,574 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 [2024-12-02 10:09:45,714 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 29 treesize of output 13 [2024-12-02 10:09:45,736 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 42 treesize of output 35 [2024-12-02 10:09:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:09:45,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:09:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:46,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874784816] [2024-12-02 10:09:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874784816] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:46,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:46,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-12-02 10:09:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721829598] [2024-12-02 10:09:46,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:46,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:46,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:46,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:09:46,163 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-12-02 10:09:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:46,708 INFO L93 Difference]: Finished difference Result 214 states and 302 transitions. [2024-12-02 10:09:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:09:46,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 94 [2024-12-02 10:09:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:46,710 INFO L225 Difference]: With dead ends: 214 [2024-12-02 10:09:46,710 INFO L226 Difference]: Without dead ends: 137 [2024-12-02 10:09:46,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:09:46,711 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 75 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:46,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:09:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-12-02 10:09:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-12-02 10:09:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 114 states have internal predecessors, (153), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 189 transitions. [2024-12-02 10:09:46,728 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 189 transitions. Word has length 94 [2024-12-02 10:09:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:46,728 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 189 transitions. [2024-12-02 10:09:46,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-12-02 10:09:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 189 transitions. [2024-12-02 10:09:46,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:46,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:46,730 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] [2024-12-02 10:09:46,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 10:09:46,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:46,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:46,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:46,932 INFO L85 PathProgramCache]: Analyzing trace with hash -463624664, now seen corresponding path program 1 times [2024-12-02 10:09:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:46,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074227542] [2024-12-02 10:09:46,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:46,932 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 [2024-12-02 10:09:46,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:46,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:46,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:47,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:09:47,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:47,202 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 [2024-12-02 10:09:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:47,221 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:47,221 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074227542] [2024-12-02 10:09:47,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074227542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:47,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:47,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:09:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763687695] [2024-12-02 10:09:47,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:47,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:09:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:47,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:09:47,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:47,224 INFO L87 Difference]: Start difference. First operand 134 states and 189 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 10:09:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:47,252 INFO L93 Difference]: Finished difference Result 265 states and 375 transitions. [2024-12-02 10:09:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:09:47,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 96 [2024-12-02 10:09:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:47,255 INFO L225 Difference]: With dead ends: 265 [2024-12-02 10:09:47,256 INFO L226 Difference]: Without dead ends: 134 [2024-12-02 10:09:47,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:47,257 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:47,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:47,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-12-02 10:09:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-12-02 10:09:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 113 states have (on average 1.336283185840708) internal successors, (151), 114 states have internal predecessors, (151), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 187 transitions. [2024-12-02 10:09:47,274 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 187 transitions. Word has length 96 [2024-12-02 10:09:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:47,275 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 187 transitions. [2024-12-02 10:09:47,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 10:09:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 187 transitions. [2024-12-02 10:09:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:47,277 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:47,277 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] [2024-12-02 10:09:47,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Forceful destruction successful, exit code 0 [2024-12-02 10:09:47,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:47,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:47,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash -856651674, now seen corresponding path program 1 times [2024-12-02 10:09:47,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:47,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953957173] [2024-12-02 10:09:47,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:47,479 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 [2024-12-02 10:09:47,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:47,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:47,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:47,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:09:47,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:47,873 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 [2024-12-02 10:09:47,997 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 40 treesize of output 33 [2024-12-02 10:09:48,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:48,102 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 68 treesize of output 58 [2024-12-02 10:09:48,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:48,652 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 152 treesize of output 98 [2024-12-02 10:09:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:09:48,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:09:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:48,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953957173] [2024-12-02 10:09:48,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953957173] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:48,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:48,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2024-12-02 10:09:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317311442] [2024-12-02 10:09:48,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:48,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:09:48,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:48,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:09:48,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:09:48,904 INFO L87 Difference]: Start difference. First operand 134 states and 187 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2024-12-02 10:09:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:49,273 INFO L93 Difference]: Finished difference Result 294 states and 411 transitions. [2024-12-02 10:09:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 96 [2024-12-02 10:09:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:49,276 INFO L225 Difference]: With dead ends: 294 [2024-12-02 10:09:49,276 INFO L226 Difference]: Without dead ends: 163 [2024-12-02 10:09:49,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:09:49,277 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 82 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:49,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 541 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:09:49,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-12-02 10:09:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 110. [2024-12-02 10:09:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 152 transitions. [2024-12-02 10:09:49,292 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 152 transitions. Word has length 96 [2024-12-02 10:09:49,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:49,292 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 152 transitions. [2024-12-02 10:09:49,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2024-12-02 10:09:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2024-12-02 10:09:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:49,294 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:49,294 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] [2024-12-02 10:09:49,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:49,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:49,495 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:49,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:49,495 INFO L85 PathProgramCache]: Analyzing trace with hash 916608243, now seen corresponding path program 1 times [2024-12-02 10:09:49,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:49,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888308922] [2024-12-02 10:09:49,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:49,496 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 [2024-12-02 10:09:49,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:49,498 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:49,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:49,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:09:49,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:49,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:49,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:49,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888308922] [2024-12-02 10:09:49,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888308922] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:49,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:49,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:09:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500710513] [2024-12-02 10:09:49,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:49,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:09:49,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:49,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:09:49,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:49,708 INFO L87 Difference]: Start difference. First operand 110 states and 152 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 10:09:49,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:49,732 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2024-12-02 10:09:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:09:49,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 96 [2024-12-02 10:09:49,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:49,734 INFO L225 Difference]: With dead ends: 198 [2024-12-02 10:09:49,734 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 10:09:49,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:09:49,735 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:49,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 10:09:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-12-02 10:09:49,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3) internal successors, (117), 91 states have internal predecessors, (117), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:49,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 153 transitions. [2024-12-02 10:09:49,748 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 153 transitions. Word has length 96 [2024-12-02 10:09:49,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:49,749 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 153 transitions. [2024-12-02 10:09:49,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-12-02 10:09:49,749 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 153 transitions. [2024-12-02 10:09:49,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 10:09:49,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:49,750 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] [2024-12-02 10:09:49,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:49,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:49,951 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:49,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:49,951 INFO L85 PathProgramCache]: Analyzing trace with hash 329802229, now seen corresponding path program 1 times [2024-12-02 10:09:49,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:49,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564761139] [2024-12-02 10:09:49,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:49,952 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 [2024-12-02 10:09:49,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:49,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:49,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Waiting until timeout for monitored process [2024-12-02 10:09:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:50,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:09:50,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 10:09:50,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:09:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:50,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:50,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564761139] [2024-12-02 10:09:50,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564761139] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:50,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:50,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 10:09:50,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117268843] [2024-12-02 10:09:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:50,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:50,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:50,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:50,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:09:50,441 INFO L87 Difference]: Start difference. First operand 111 states and 153 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-12-02 10:09:50,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:50,543 INFO L93 Difference]: Finished difference Result 243 states and 327 transitions. [2024-12-02 10:09:50,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:09:50,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 96 [2024-12-02 10:09:50,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:50,544 INFO L225 Difference]: With dead ends: 243 [2024-12-02 10:09:50,545 INFO L226 Difference]: Without dead ends: 155 [2024-12-02 10:09:50,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:09:50,545 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 53 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:50,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 456 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-12-02 10:09:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-12-02 10:09:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.2913385826771653) internal successors, (164), 129 states have internal predecessors, (164), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:09:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 204 transitions. [2024-12-02 10:09:50,562 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 204 transitions. Word has length 96 [2024-12-02 10:09:50,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:50,562 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 204 transitions. [2024-12-02 10:09:50,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-12-02 10:09:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 204 transitions. [2024-12-02 10:09:50,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 10:09:50,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:50,563 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] [2024-12-02 10:09:50,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 10:09:50,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:50,764 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:50,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:50,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1874819353, now seen corresponding path program 1 times [2024-12-02 10:09:50,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:50,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350958019] [2024-12-02 10:09:50,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:50,764 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 [2024-12-02 10:09:50,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:50,766 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:50,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:50,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:09:50,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:51,165 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 33 treesize of output 15 [2024-12-02 10:09:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 10:09:51,200 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:09:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:51,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:51,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350958019] [2024-12-02 10:09:51,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350958019] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:51,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:51,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 10:09:51,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643754999] [2024-12-02 10:09:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:51,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:51,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:51,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:09:51,301 INFO L87 Difference]: Start difference. First operand 152 states and 204 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-12-02 10:09:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:51,427 INFO L93 Difference]: Finished difference Result 277 states and 366 transitions. [2024-12-02 10:09:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:09:51,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 97 [2024-12-02 10:09:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:51,429 INFO L225 Difference]: With dead ends: 277 [2024-12-02 10:09:51,429 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 10:09:51,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:09:51,430 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 80 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:51,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 317 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 10:09:51,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 119. [2024-12-02 10:09:51,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 97 states have internal predecessors, (121), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:09:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 157 transitions. [2024-12-02 10:09:51,447 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 157 transitions. Word has length 97 [2024-12-02 10:09:51,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:51,447 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 157 transitions. [2024-12-02 10:09:51,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-12-02 10:09:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 157 transitions. [2024-12-02 10:09:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 10:09:51,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:51,448 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] [2024-12-02 10:09:51,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 10:09:51,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:51,648 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:51,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -421311151, now seen corresponding path program 1 times [2024-12-02 10:09:51,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:51,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702542711] [2024-12-02 10:09:51,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:51,649 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 [2024-12-02 10:09:51,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:51,650 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:51,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:51,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 10:09:51,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:51,921 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 [2024-12-02 10:09:51,925 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 19 treesize of output 19 [2024-12-02 10:09:51,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:51,987 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 60 treesize of output 30 [2024-12-02 10:09:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:52,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:52,013 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:52,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702542711] [2024-12-02 10:09:52,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702542711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:52,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:52,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:09:52,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582198329] [2024-12-02 10:09:52,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:52,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:09:52,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:52,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:09:52,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:09:52,015 INFO L87 Difference]: Start difference. First operand 119 states and 157 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2024-12-02 10:09:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:52,231 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2024-12-02 10:09:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:52,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 98 [2024-12-02 10:09:52,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:52,233 INFO L225 Difference]: With dead ends: 299 [2024-12-02 10:09:52,233 INFO L226 Difference]: Without dead ends: 207 [2024-12-02 10:09:52,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:09:52,233 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 87 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:52,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 634 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:09:52,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-12-02 10:09:52,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-12-02 10:09:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 169 states have (on average 1.272189349112426) internal successors, (215), 171 states have internal predecessors, (215), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 269 transitions. [2024-12-02 10:09:52,253 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 269 transitions. Word has length 98 [2024-12-02 10:09:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:52,253 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 269 transitions. [2024-12-02 10:09:52,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2024-12-02 10:09:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 269 transitions. [2024-12-02 10:09:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:52,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:52,254 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] [2024-12-02 10:09:52,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:52,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:52,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:52,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:52,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1036545903, now seen corresponding path program 1 times [2024-12-02 10:09:52,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:52,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582459094] [2024-12-02 10:09:52,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:52,455 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 [2024-12-02 10:09:52,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:52,456 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:52,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:52,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:09:52,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:52,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:52,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:52,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582459094] [2024-12-02 10:09:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582459094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:52,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:09:52,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962982201] [2024-12-02 10:09:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:52,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:52,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:52,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:52,670 INFO L87 Difference]: Start difference. First operand 204 states and 269 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:52,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:52,790 INFO L93 Difference]: Finished difference Result 452 states and 596 transitions. [2024-12-02 10:09:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:09:52,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:52,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:52,792 INFO L225 Difference]: With dead ends: 452 [2024-12-02 10:09:52,792 INFO L226 Difference]: Without dead ends: 275 [2024-12-02 10:09:52,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:09:52,793 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 42 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:52,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 451 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:09:52,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-12-02 10:09:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2024-12-02 10:09:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 177 states have (on average 1.2598870056497176) internal successors, (223), 179 states have internal predecessors, (223), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 277 transitions. [2024-12-02 10:09:52,816 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 277 transitions. Word has length 99 [2024-12-02 10:09:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:52,816 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 277 transitions. [2024-12-02 10:09:52,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:52,816 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 277 transitions. [2024-12-02 10:09:52,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:52,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:52,817 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] [2024-12-02 10:09:52,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:53,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:53,018 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:53,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:53,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1365186479, now seen corresponding path program 1 times [2024-12-02 10:09:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920831968] [2024-12-02 10:09:53,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:53,019 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 [2024-12-02 10:09:53,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:53,020 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:53,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:53,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:09:53,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:53,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:53,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:53,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920831968] [2024-12-02 10:09:53,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920831968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:53,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:53,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:09:53,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204157221] [2024-12-02 10:09:53,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:53,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:53,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:53,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:53,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:53,220 INFO L87 Difference]: Start difference. First operand 212 states and 277 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:53,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:53,261 INFO L93 Difference]: Finished difference Result 403 states and 526 transitions. [2024-12-02 10:09:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:09:53,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:53,264 INFO L225 Difference]: With dead ends: 403 [2024-12-02 10:09:53,264 INFO L226 Difference]: Without dead ends: 218 [2024-12-02 10:09:53,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:53,264 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:53,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:09:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-12-02 10:09:53,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2024-12-02 10:09:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 181 states have internal predecessors, (225), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 279 transitions. [2024-12-02 10:09:53,277 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 279 transitions. Word has length 99 [2024-12-02 10:09:53,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:53,277 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 279 transitions. [2024-12-02 10:09:53,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 279 transitions. [2024-12-02 10:09:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:53,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:53,278 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] [2024-12-02 10:09:53,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 10:09:53,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:53,478 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:53,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1572870353, now seen corresponding path program 1 times [2024-12-02 10:09:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:53,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213562405] [2024-12-02 10:09:53,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:53,479 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 [2024-12-02 10:09:53,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:53,481 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:53,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:53,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:09:53,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:53,699 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 [2024-12-02 10:09:53,772 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 29 treesize of output 13 [2024-12-02 10:09:53,794 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 37 treesize of output 19 [2024-12-02 10:09:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:09:53,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:09:53,881 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:53,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213562405] [2024-12-02 10:09:53,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213562405] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:53,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [864321863] [2024-12-02 10:09:53,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:53,882 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 10:09:53,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 10:09:53,883 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 10:09:53,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-12-02 10:09:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:54,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:09:54,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:54,728 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 15 treesize of output 15 [2024-12-02 10:09:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:54,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:54,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [864321863] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:54,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:54,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-12-02 10:09:54,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311709769] [2024-12-02 10:09:54,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:54,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:09:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:54,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:09:54,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:09:54,812 INFO L87 Difference]: Start difference. First operand 214 states and 279 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-12-02 10:09:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:55,192 INFO L93 Difference]: Finished difference Result 532 states and 688 transitions. [2024-12-02 10:09:55,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:09:55,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:55,194 INFO L225 Difference]: With dead ends: 532 [2024-12-02 10:09:55,194 INFO L226 Difference]: Without dead ends: 345 [2024-12-02 10:09:55,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:09:55,195 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 126 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:55,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 659 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:09:55,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-12-02 10:09:55,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 222. [2024-12-02 10:09:55,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 187 states have (on average 1.267379679144385) internal successors, (237), 189 states have internal predecessors, (237), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 10:09:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 291 transitions. [2024-12-02 10:09:55,220 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 291 transitions. Word has length 99 [2024-12-02 10:09:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:55,220 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 291 transitions. [2024-12-02 10:09:55,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-12-02 10:09:55,221 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 291 transitions. [2024-12-02 10:09:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:55,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:55,222 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] [2024-12-02 10:09:55,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:55,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-12-02 10:09:55,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 10:09:55,622 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:55,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash 551801999, now seen corresponding path program 1 times [2024-12-02 10:09:55,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:55,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078604692] [2024-12-02 10:09:55,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:55,623 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 [2024-12-02 10:09:55,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:55,625 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:55,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:55,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:09:55,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:55,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:09:55,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:55,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078604692] [2024-12-02 10:09:55,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078604692] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:09:55,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:09:55,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:09:55,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641523487] [2024-12-02 10:09:55,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:55,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:09:55,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:55,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:09:55,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:09:55,872 INFO L87 Difference]: Start difference. First operand 222 states and 291 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:56,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:09:56,164 INFO L93 Difference]: Finished difference Result 524 states and 677 transitions. [2024-12-02 10:09:56,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:09:56,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 99 [2024-12-02 10:09:56,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:09:56,166 INFO L225 Difference]: With dead ends: 524 [2024-12-02 10:09:56,166 INFO L226 Difference]: Without dead ends: 329 [2024-12-02 10:09:56,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:09:56,167 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 69 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:09:56,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 435 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:09:56,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-12-02 10:09:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 186. [2024-12-02 10:09:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 159 states have (on average 1.2578616352201257) internal successors, (200), 160 states have internal predecessors, (200), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:09:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 240 transitions. [2024-12-02 10:09:56,181 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 240 transitions. Word has length 99 [2024-12-02 10:09:56,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:09:56,182 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 240 transitions. [2024-12-02 10:09:56,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-12-02 10:09:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 240 transitions. [2024-12-02 10:09:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 10:09:56,182 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:09:56,182 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] [2024-12-02 10:09:56,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:56,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:56,383 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:09:56,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:09:56,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2001270962, now seen corresponding path program 1 times [2024-12-02 10:09:56,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:09:56,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160331653] [2024-12-02 10:09:56,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:09:56,383 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 [2024-12-02 10:09:56,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:09:56,385 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:09:56,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:09:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:09:56,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:09:56,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:09:56,675 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 9 treesize of output 3 [2024-12-02 10:09:56,957 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 [2024-12-02 10:09:57,172 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 [2024-12-02 10:09:57,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:57,509 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 45 treesize of output 26 [2024-12-02 10:09:57,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:57,769 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 79 treesize of output 63 [2024-12-02 10:09:57,780 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 42 [2024-12-02 10:09:58,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:09:58,039 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 81 treesize of output 37 [2024-12-02 10:09:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:09:58,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:09:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:09:59,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:09:59,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160331653] [2024-12-02 10:09:59,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160331653] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:09:59,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:09:59,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 19 [2024-12-02 10:09:59,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307304446] [2024-12-02 10:09:59,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:09:59,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:09:59,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:09:59,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:09:59,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:09:59,670 INFO L87 Difference]: Start difference. First operand 186 states and 240 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-12-02 10:10:04,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:08,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:13,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:17,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:21,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:25,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:10:29,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:33,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 10:10:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:34,254 INFO L93 Difference]: Finished difference Result 438 states and 562 transitions. [2024-12-02 10:10:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:10:34,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 99 [2024-12-02 10:10:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:34,258 INFO L225 Difference]: With dead ends: 438 [2024-12-02 10:10:34,258 INFO L226 Difference]: Without dead ends: 255 [2024-12-02 10:10:34,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:10:34,258 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 158 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:34,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 569 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 34.1s Time] [2024-12-02 10:10:34,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-12-02 10:10:34,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 208. [2024-12-02 10:10:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.2486187845303867) internal successors, (226), 182 states have internal predecessors, (226), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:10:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 266 transitions. [2024-12-02 10:10:34,271 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 266 transitions. Word has length 99 [2024-12-02 10:10:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:34,272 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 266 transitions. [2024-12-02 10:10:34,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-12-02 10:10:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 266 transitions. [2024-12-02 10:10:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 10:10:34,273 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:34,273 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] [2024-12-02 10:10:34,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:34,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:34,474 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:34,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:34,474 INFO L85 PathProgramCache]: Analyzing trace with hash 325744351, now seen corresponding path program 1 times [2024-12-02 10:10:34,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:10:34,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874970767] [2024-12-02 10:10:34,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:34,475 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 [2024-12-02 10:10:34,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:10:34,477 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:10:34,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:34,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:10:34,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:10:34,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:10:34,737 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:10:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874970767] [2024-12-02 10:10:34,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874970767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:34,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:34,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:10:34,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113124143] [2024-12-02 10:10:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:34,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:10:34,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:10:34,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:10:34,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:10:34,739 INFO L87 Difference]: Start difference. First operand 208 states and 266 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-12-02 10:10:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:34,819 INFO L93 Difference]: Finished difference Result 416 states and 533 transitions. [2024-12-02 10:10:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:10:34,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 100 [2024-12-02 10:10:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:34,821 INFO L225 Difference]: With dead ends: 416 [2024-12-02 10:10:34,821 INFO L226 Difference]: Without dead ends: 211 [2024-12-02 10:10:34,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:10:34,821 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:34,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:10:34,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-12-02 10:10:34,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2024-12-02 10:10:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 182 states have internal predecessors, (225), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:10:34,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 265 transitions. [2024-12-02 10:10:34,835 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 265 transitions. Word has length 100 [2024-12-02 10:10:34,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:34,835 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 265 transitions. [2024-12-02 10:10:34,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-12-02 10:10:34,835 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 265 transitions. [2024-12-02 10:10:34,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 10:10:34,836 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:34,836 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] [2024-12-02 10:10:34,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:35,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:35,037 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:35,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1298355466, now seen corresponding path program 1 times [2024-12-02 10:10:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:10:35,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556884832] [2024-12-02 10:10:35,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:35,037 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 [2024-12-02 10:10:35,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:10:35,039 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:10:35,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:35,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:10:35,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:35,386 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 [2024-12-02 10:10:36,212 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:36,212 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 188 treesize of output 98 [2024-12-02 10:10:36,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:36,768 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 384 treesize of output 134 [2024-12-02 10:10:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 10:10:36,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:37,365 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:10:37,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556884832] [2024-12-02 10:10:37,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556884832] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:37,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [34000140] [2024-12-02 10:10:37,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:37,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 10:10:37,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 10:10:37,368 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 10:10:37,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-02 10:10:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:38,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:10:38,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:38,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 10:10:40,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:40,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 100 [2024-12-02 10:10:41,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:41,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 299 treesize of output 151 [2024-12-02 10:10:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 10:10:41,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:41,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [34000140] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:41,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:10:41,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2024-12-02 10:10:41,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724120747] [2024-12-02 10:10:41,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:41,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 10:10:41,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:10:41,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 10:10:41,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:10:41,777 INFO L87 Difference]: Start difference. First operand 208 states and 265 transitions. Second operand has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 17 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 10:10:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:46,146 INFO L93 Difference]: Finished difference Result 542 states and 681 transitions. [2024-12-02 10:10:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:10:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 17 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 100 [2024-12-02 10:10:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:46,149 INFO L225 Difference]: With dead ends: 542 [2024-12-02 10:10:46,149 INFO L226 Difference]: Without dead ends: 540 [2024-12-02 10:10:46,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:10:46,150 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 650 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:46,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1004 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 10:10:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-12-02 10:10:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 532. [2024-12-02 10:10:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 467 states have (on average 1.2334047109207709) internal successors, (576), 473 states have internal predecessors, (576), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:10:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 672 transitions. [2024-12-02 10:10:46,193 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 672 transitions. Word has length 100 [2024-12-02 10:10:46,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:46,193 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 672 transitions. [2024-12-02 10:10:46,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 17 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 10:10:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 672 transitions. [2024-12-02 10:10:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 10:10:46,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:46,194 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] [2024-12-02 10:10:46,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:46,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-12-02 10:10:46,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 10:10:46,595 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:46,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:46,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2029261176, now seen corresponding path program 1 times [2024-12-02 10:10:46,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:10:46,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151089499] [2024-12-02 10:10:46,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:46,596 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 [2024-12-02 10:10:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:10:46,597 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:10:46,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:46,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:10:46,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 10:10:46,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:10:46,802 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:10:46,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151089499] [2024-12-02 10:10:46,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151089499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:46,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:10:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996689038] [2024-12-02 10:10:46,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:46,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:10:46,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:10:46,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:10:46,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:10:46,803 INFO L87 Difference]: Start difference. First operand 532 states and 672 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-12-02 10:10:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:46,906 INFO L93 Difference]: Finished difference Result 1061 states and 1341 transitions. [2024-12-02 10:10:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:10:46,907 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), 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 100 [2024-12-02 10:10:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:46,908 INFO L225 Difference]: With dead ends: 1061 [2024-12-02 10:10:46,908 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 10:10:46,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:10:46,909 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:46,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:10:46,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 10:10:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 10:10:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 467 states have (on average 1.2291220556745182) internal successors, (574), 473 states have internal predecessors, (574), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:10:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 670 transitions. [2024-12-02 10:10:46,953 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 670 transitions. Word has length 100 [2024-12-02 10:10:46,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:46,953 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 670 transitions. [2024-12-02 10:10:46,953 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), 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) [2024-12-02 10:10:46,953 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 670 transitions. [2024-12-02 10:10:46,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 10:10:46,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:46,954 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] [2024-12-02 10:10:46,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:47,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:47,154 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:47,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:47,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1665814440, now seen corresponding path program 1 times [2024-12-02 10:10:47,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:10:47,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605357884] [2024-12-02 10:10:47,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:47,155 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 [2024-12-02 10:10:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:10:47,157 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:10:47,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:47,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:10:47,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:47,452 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 9 treesize of output 3 [2024-12-02 10:10:47,558 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 [2024-12-02 10:10:47,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:47,951 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 45 treesize of output 26 [2024-12-02 10:10:48,033 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 32 treesize of output 26 [2024-12-02 10:10:48,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:48,043 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 52 treesize of output 42 [2024-12-02 10:10:48,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:10:48,519 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 78 treesize of output 40 [2024-12-02 10:10:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:10:48,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:10:49,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:10:49,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605357884] [2024-12-02 10:10:49,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605357884] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:49,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:10:49,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-12-02 10:10:49,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320243269] [2024-12-02 10:10:49,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:49,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:10:49,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:10:49,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:10:49,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:10:49,578 INFO L87 Difference]: Start difference. First operand 532 states and 670 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-12-02 10:10:54,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:10:58,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:10:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:58,980 INFO L93 Difference]: Finished difference Result 1145 states and 1438 transitions. [2024-12-02 10:10:58,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:10:58,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 101 [2024-12-02 10:10:58,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:58,986 INFO L225 Difference]: With dead ends: 1145 [2024-12-02 10:10:58,986 INFO L226 Difference]: Without dead ends: 616 [2024-12-02 10:10:58,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:10:58,987 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 40 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:58,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 459 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2024-12-02 10:10:58,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-12-02 10:10:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 515. [2024-12-02 10:10:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 450 states have (on average 1.22) internal successors, (549), 456 states have internal predecessors, (549), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:10:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 645 transitions. [2024-12-02 10:10:59,055 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 645 transitions. Word has length 101 [2024-12-02 10:10:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:59,055 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 645 transitions. [2024-12-02 10:10:59,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-12-02 10:10:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 645 transitions. [2024-12-02 10:10:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 10:10:59,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:59,056 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] [2024-12-02 10:10:59,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:59,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:59,257 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:59,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1855279878, now seen corresponding path program 1 times [2024-12-02 10:10:59,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:10:59,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226184793] [2024-12-02 10:10:59,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:59,258 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 [2024-12-02 10:10:59,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:10:59,260 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:10:59,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:10:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:59,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:10:59,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 10:10:59,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:10:59,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:10:59,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226184793] [2024-12-02 10:10:59,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226184793] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:59,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:59,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:10:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272729980] [2024-12-02 10:10:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:59,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:10:59,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:10:59,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:10:59,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:10:59,511 INFO L87 Difference]: Start difference. First operand 515 states and 645 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 10:10:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:59,743 INFO L93 Difference]: Finished difference Result 1059 states and 1321 transitions. [2024-12-02 10:10:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:10:59,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-12-02 10:10:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:59,745 INFO L225 Difference]: With dead ends: 1059 [2024-12-02 10:10:59,745 INFO L226 Difference]: Without dead ends: 543 [2024-12-02 10:10:59,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:10:59,746 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:59,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:10:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-12-02 10:10:59,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 515. [2024-12-02 10:10:59,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 450 states have (on average 1.2155555555555555) internal successors, (547), 456 states have internal predecessors, (547), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:10:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 643 transitions. [2024-12-02 10:10:59,818 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 643 transitions. Word has length 102 [2024-12-02 10:10:59,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:59,819 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 643 transitions. [2024-12-02 10:10:59,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 10:10:59,819 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 643 transitions. [2024-12-02 10:10:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 10:10:59,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:59,820 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] [2024-12-02 10:10:59,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 10:11:00,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:00,021 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:00,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash 531229628, now seen corresponding path program 1 times [2024-12-02 10:11:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:00,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788768477] [2024-12-02 10:11:00,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:00,021 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 [2024-12-02 10:11:00,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:00,023 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:00,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:00,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 10:11:00,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:00,433 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 [2024-12-02 10:11:01,276 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:01,276 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 186 treesize of output 96 [2024-12-02 10:11:01,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:01,797 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 382 treesize of output 132 [2024-12-02 10:11:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:11:01,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:02,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:02,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788768477] [2024-12-02 10:11:02,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788768477] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:02,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1373905502] [2024-12-02 10:11:02,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:02,451 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 10:11:02,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 10:11:02,453 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 10:11:02,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-12-02 10:11:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:03,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 10:11:03,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:03,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 10:11:12,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:12,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 98 [2024-12-02 10:11:13,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:13,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 193 treesize of output 81 [2024-12-02 10:11:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:11:13,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:14,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1373905502] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:14,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:11:14,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 24 [2024-12-02 10:11:14,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965644582] [2024-12-02 10:11:14,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:14,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 10:11:14,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:14,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 10:11:14,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=756, Unknown=1, NotChecked=0, Total=870 [2024-12-02 10:11:14,163 INFO L87 Difference]: Start difference. First operand 515 states and 643 transitions. Second operand has 25 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 22 states have internal predecessors, (107), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 10:11:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:19,201 INFO L93 Difference]: Finished difference Result 689 states and 843 transitions. [2024-12-02 10:11:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 10:11:19,202 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 22 states have internal predecessors, (107), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) Word has length 102 [2024-12-02 10:11:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:19,203 INFO L225 Difference]: With dead ends: 689 [2024-12-02 10:11:19,203 INFO L226 Difference]: Without dead ends: 687 [2024-12-02 10:11:19,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=394, Invalid=1861, Unknown=1, NotChecked=0, Total=2256 [2024-12-02 10:11:19,204 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 753 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:19,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1198 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 10:11:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-12-02 10:11:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 523. [2024-12-02 10:11:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 456 states have (on average 1.212719298245614) internal successors, (553), 462 states have internal predecessors, (553), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:11:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 649 transitions. [2024-12-02 10:11:19,256 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 649 transitions. Word has length 102 [2024-12-02 10:11:19,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:19,256 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 649 transitions. [2024-12-02 10:11:19,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 22 states have internal predecessors, (107), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 10:11:19,256 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 649 transitions. [2024-12-02 10:11:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 10:11:19,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:19,257 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] [2024-12-02 10:11:19,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-12-02 10:11:19,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:19,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:19,658 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:19,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:19,658 INFO L85 PathProgramCache]: Analyzing trace with hash -944868170, now seen corresponding path program 1 times [2024-12-02 10:11:19,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:19,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590349951] [2024-12-02 10:11:19,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:19,659 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 [2024-12-02 10:11:19,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:19,661 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:19,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:19,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:11:19,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:20,011 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 60 treesize of output 53 [2024-12-02 10:11:20,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:20,794 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 53 [2024-12-02 10:11:20,797 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 42 treesize of output 18 [2024-12-02 10:11:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:20,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:20,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:20,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590349951] [2024-12-02 10:11:20,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590349951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:20,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:20,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:11:20,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963237460] [2024-12-02 10:11:20,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:20,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:11:20,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:20,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:11:20,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:11:20,855 INFO L87 Difference]: Start difference. First operand 523 states and 649 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2024-12-02 10:11:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:23,678 INFO L93 Difference]: Finished difference Result 1542 states and 1893 transitions. [2024-12-02 10:11:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:11:23,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 [2024-12-02 10:11:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:23,683 INFO L225 Difference]: With dead ends: 1542 [2024-12-02 10:11:23,683 INFO L226 Difference]: Without dead ends: 1022 [2024-12-02 10:11:23,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:11:23,686 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 163 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:23,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 668 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 10:11:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-12-02 10:11:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 726. [2024-12-02 10:11:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 624 states have (on average 1.1923076923076923) internal successors, (744), 635 states have internal predecessors, (744), 72 states have call successors, (72), 29 states have call predecessors, (72), 29 states have return successors, (72), 61 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 10:11:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 888 transitions. [2024-12-02 10:11:23,795 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 888 transitions. Word has length 103 [2024-12-02 10:11:23,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:23,796 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 888 transitions. [2024-12-02 10:11:23,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2024-12-02 10:11:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 888 transitions. [2024-12-02 10:11:23,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 10:11:23,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:23,797 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] [2024-12-02 10:11:23,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:23,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:23,998 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:23,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1351234095, now seen corresponding path program 1 times [2024-12-02 10:11:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:23,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75468863] [2024-12-02 10:11:23,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:23,999 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 [2024-12-02 10:11:23,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:24,000 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:24,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:24,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 10:11:24,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 10:11:24,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:24,711 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:24,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:24,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75468863] [2024-12-02 10:11:24,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75468863] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:24,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:24,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-12-02 10:11:24,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229062459] [2024-12-02 10:11:24,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:24,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:24,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:24,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:24,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:11:24,713 INFO L87 Difference]: Start difference. First operand 726 states and 888 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) [2024-12-02 10:11:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:24,930 INFO L93 Difference]: Finished difference Result 1710 states and 2076 transitions. [2024-12-02 10:11:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:11:24,931 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 [2024-12-02 10:11:24,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:24,934 INFO L225 Difference]: With dead ends: 1710 [2024-12-02 10:11:24,934 INFO L226 Difference]: Without dead ends: 1000 [2024-12-02 10:11:24,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:11:24,936 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 52 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:24,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 309 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-12-02 10:11:25,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 838. [2024-12-02 10:11:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 736 states have (on average 1.171195652173913) internal successors, (862), 747 states have internal predecessors, (862), 72 states have call successors, (72), 29 states have call predecessors, (72), 29 states have return successors, (72), 61 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 10:11:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1006 transitions. [2024-12-02 10:11:25,023 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1006 transitions. Word has length 103 [2024-12-02 10:11:25,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:25,023 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1006 transitions. [2024-12-02 10:11:25,023 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) [2024-12-02 10:11:25,023 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1006 transitions. [2024-12-02 10:11:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 10:11:25,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:25,025 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] [2024-12-02 10:11:25,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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)] Forceful destruction successful, exit code 0 [2024-12-02 10:11:25,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:25,225 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:25,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash -541887469, now seen corresponding path program 1 times [2024-12-02 10:11:25,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:25,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3473745] [2024-12-02 10:11:25,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:25,226 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 [2024-12-02 10:11:25,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:25,228 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:25,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:25,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:11:25,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:25,568 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 61 treesize of output 54 [2024-12-02 10:11:25,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:25,972 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 66 treesize of output 42 [2024-12-02 10:11:25,975 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 19 [2024-12-02 10:11:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:26,030 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:26,030 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3473745] [2024-12-02 10:11:26,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3473745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:26,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:26,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:11:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197436971] [2024-12-02 10:11:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:26,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:11:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:26,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:11:26,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:11:26,031 INFO L87 Difference]: Start difference. First operand 838 states and 1006 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2024-12-02 10:11:27,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:27,371 INFO L93 Difference]: Finished difference Result 1757 states and 2096 transitions. [2024-12-02 10:11:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:11:27,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 [2024-12-02 10:11:27,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:27,374 INFO L225 Difference]: With dead ends: 1757 [2024-12-02 10:11:27,374 INFO L226 Difference]: Without dead ends: 935 [2024-12-02 10:11:27,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:11:27,375 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 117 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:27,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 538 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:11:27,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-12-02 10:11:27,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 851. [2024-12-02 10:11:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 738 states have (on average 1.1571815718157181) internal successors, (854), 750 states have internal predecessors, (854), 79 states have call successors, (79), 33 states have call predecessors, (79), 33 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:27,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1012 transitions. [2024-12-02 10:11:27,465 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1012 transitions. Word has length 103 [2024-12-02 10:11:27,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:27,465 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1012 transitions. [2024-12-02 10:11:27,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2024-12-02 10:11:27,465 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1012 transitions. [2024-12-02 10:11:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 10:11:27,469 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:27,469 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] [2024-12-02 10:11:27,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:27,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:27,670 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:27,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1160317400, now seen corresponding path program 1 times [2024-12-02 10:11:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:27,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315084732] [2024-12-02 10:11:27,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:27,671 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 [2024-12-02 10:11:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:27,672 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:27,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (28)] Waiting until timeout for monitored process [2024-12-02 10:11:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:27,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:11:27,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:27,932 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 [2024-12-02 10:11:28,070 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 29 treesize of output 13 [2024-12-02 10:11:28,093 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 37 treesize of output 19 [2024-12-02 10:11:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:11:28,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:28,207 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315084732] [2024-12-02 10:11:28,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315084732] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1936845668] [2024-12-02 10:11:28,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:28,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 10:11:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 10:11:28,209 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 10:11:28,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-12-02 10:11:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:29,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:11:29,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:29,242 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 [2024-12-02 10:11:29,475 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 23 treesize of output 11 [2024-12-02 10:11:29,508 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 31 treesize of output 19 [2024-12-02 10:11:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 10:11:29,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:29,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1936845668] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:29,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:11:29,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-12-02 10:11:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972718671] [2024-12-02 10:11:29,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:29,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:11:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:29,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:11:29,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:11:29,596 INFO L87 Difference]: Start difference. First operand 851 states and 1012 transitions. Second operand has 12 states, 10 states have (on average 9.6) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 10:11:30,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:30,075 INFO L93 Difference]: Finished difference Result 1663 states and 1953 transitions. [2024-12-02 10:11:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:11:30,076 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.6) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) Word has length 104 [2024-12-02 10:11:30,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:30,079 INFO L225 Difference]: With dead ends: 1663 [2024-12-02 10:11:30,079 INFO L226 Difference]: Without dead ends: 828 [2024-12-02 10:11:30,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:11:30,081 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 73 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:30,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 350 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:11:30,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-12-02 10:11:30,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 784. [2024-12-02 10:11:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 667 states have (on average 1.1244377811094453) internal successors, (750), 679 states have internal predecessors, (750), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 908 transitions. [2024-12-02 10:11:30,222 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 908 transitions. Word has length 104 [2024-12-02 10:11:30,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:30,222 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 908 transitions. [2024-12-02 10:11:30,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.6) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 10:11:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 908 transitions. [2024-12-02 10:11:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 10:11:30,224 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:30,224 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] [2024-12-02 10:11:30,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (28)] Ended with exit code 0 [2024-12-02 10:11:30,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-12-02 10:11:30,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 10:11:30,625 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:30,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1812975801, now seen corresponding path program 1 times [2024-12-02 10:11:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:30,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814340466] [2024-12-02 10:11:30,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:30,626 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 [2024-12-02 10:11:30,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:30,627 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:30,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:30,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 10:11:30,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:30,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-12-02 10:11:32,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:32,119 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 198 treesize of output 102 [2024-12-02 10:11:32,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:32,788 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 394 treesize of output 138 [2024-12-02 10:11:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 10:11:32,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:33,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:33,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814340466] [2024-12-02 10:11:33,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814340466] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:33,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1561432872] [2024-12-02 10:11:33,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 10:11:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 10:11:33,457 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 10:11:33,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-12-02 10:11:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:34,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 10:11:34,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:34,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 10:11:36,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:36,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 100 [2024-12-02 10:11:37,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:37,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 326 treesize of output 142 [2024-12-02 10:11:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 10:11:37,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:37,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1561432872] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:37,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:11:37,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2024-12-02 10:11:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823586129] [2024-12-02 10:11:37,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:37,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:11:37,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:37,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:11:37,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:11:37,926 INFO L87 Difference]: Start difference. First operand 784 states and 908 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 10:11:43,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:11:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:46,972 INFO L93 Difference]: Finished difference Result 1080 states and 1236 transitions. [2024-12-02 10:11:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:11:46,973 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 105 [2024-12-02 10:11:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:46,975 INFO L225 Difference]: With dead ends: 1080 [2024-12-02 10:11:46,975 INFO L226 Difference]: Without dead ends: 1078 [2024-12-02 10:11:46,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 10:11:46,976 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 317 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:46,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1127 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2024-12-02 10:11:46,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-12-02 10:11:47,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 882. [2024-12-02 10:11:47,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 765 states have (on average 1.1241830065359477) internal successors, (860), 777 states have internal predecessors, (860), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:47,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1018 transitions. [2024-12-02 10:11:47,162 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1018 transitions. Word has length 105 [2024-12-02 10:11:47,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:47,162 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1018 transitions. [2024-12-02 10:11:47,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 10:11:47,162 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1018 transitions. [2024-12-02 10:11:47,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:11:47,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:47,164 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] [2024-12-02 10:11:47,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:47,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-12-02 10:11:47,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 10:11:47,565 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:47,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1061662125, now seen corresponding path program 1 times [2024-12-02 10:11:47,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832565787] [2024-12-02 10:11:47,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:47,566 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 [2024-12-02 10:11:47,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:47,567 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:47,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:47,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:11:47,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:47,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:47,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:47,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832565787] [2024-12-02 10:11:47,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832565787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:47,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:47,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:11:47,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560752548] [2024-12-02 10:11:47,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:47,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:47,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:47,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:47,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:47,903 INFO L87 Difference]: Start difference. First operand 882 states and 1018 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-12-02 10:11:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:48,136 INFO L93 Difference]: Finished difference Result 2188 states and 2532 transitions. [2024-12-02 10:11:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:11:48,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 106 [2024-12-02 10:11:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:48,139 INFO L225 Difference]: With dead ends: 2188 [2024-12-02 10:11:48,139 INFO L226 Difference]: Without dead ends: 1322 [2024-12-02 10:11:48,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:11:48,140 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 30 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:48,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 482 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:48,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-12-02 10:11:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1208. [2024-12-02 10:11:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1091 states have (on average 1.1301558203483044) internal successors, (1233), 1103 states have internal predecessors, (1233), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1391 transitions. [2024-12-02 10:11:48,255 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1391 transitions. Word has length 106 [2024-12-02 10:11:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:48,255 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1391 transitions. [2024-12-02 10:11:48,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-12-02 10:11:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1391 transitions. [2024-12-02 10:11:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:11:48,258 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:48,258 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] [2024-12-02 10:11:48,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:48,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:48,458 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:48,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:48,459 INFO L85 PathProgramCache]: Analyzing trace with hash -999622511, now seen corresponding path program 1 times [2024-12-02 10:11:48,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:48,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358420182] [2024-12-02 10:11:48,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:48,459 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 [2024-12-02 10:11:48,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:48,461 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:48,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:48,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:11:48,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:48,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:48,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:48,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358420182] [2024-12-02 10:11:48,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358420182] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:48,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:48,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:11:48,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267776300] [2024-12-02 10:11:48,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:48,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:48,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:48,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:48,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:48,706 INFO L87 Difference]: Start difference. First operand 1208 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-12-02 10:11:48,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:48,820 INFO L93 Difference]: Finished difference Result 2224 states and 2563 transitions. [2024-12-02 10:11:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:48,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 106 [2024-12-02 10:11:48,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:48,823 INFO L225 Difference]: With dead ends: 2224 [2024-12-02 10:11:48,823 INFO L226 Difference]: Without dead ends: 1032 [2024-12-02 10:11:48,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:48,824 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:48,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:48,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-12-02 10:11:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1032. [2024-12-02 10:11:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 915 states have (on average 1.1245901639344262) internal successors, (1029), 927 states have internal predecessors, (1029), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1187 transitions. [2024-12-02 10:11:48,928 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1187 transitions. Word has length 106 [2024-12-02 10:11:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:48,929 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1187 transitions. [2024-12-02 10:11:48,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-12-02 10:11:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1187 transitions. [2024-12-02 10:11:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:11:48,930 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:48,930 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] [2024-12-02 10:11:48,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:49,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:49,130 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:49,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:49,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2092814708, now seen corresponding path program 1 times [2024-12-02 10:11:49,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:49,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828352064] [2024-12-02 10:11:49,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:49,131 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 [2024-12-02 10:11:49,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:49,132 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:49,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:49,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:11:49,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:49,470 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:49,470 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:49,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828352064] [2024-12-02 10:11:49,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828352064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:49,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:49,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:11:49,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506215973] [2024-12-02 10:11:49,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:49,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:49,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:49,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:49,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:49,471 INFO L87 Difference]: Start difference. First operand 1032 states and 1187 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2024-12-02 10:11:49,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:49,692 INFO L93 Difference]: Finished difference Result 2256 states and 2592 transitions. [2024-12-02 10:11:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:11:49,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 [2024-12-02 10:11:49,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:49,695 INFO L225 Difference]: With dead ends: 2256 [2024-12-02 10:11:49,695 INFO L226 Difference]: Without dead ends: 1240 [2024-12-02 10:11:49,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:11:49,697 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 26 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:49,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 456 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:49,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-12-02 10:11:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1208. [2024-12-02 10:11:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1091 states have (on average 1.1191567369385884) internal successors, (1221), 1103 states have internal predecessors, (1221), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1379 transitions. [2024-12-02 10:11:49,830 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1379 transitions. Word has length 107 [2024-12-02 10:11:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:49,830 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1379 transitions. [2024-12-02 10:11:49,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2024-12-02 10:11:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1379 transitions. [2024-12-02 10:11:49,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:11:49,831 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:49,831 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] [2024-12-02 10:11:49,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:50,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:50,032 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:50,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:50,032 INFO L85 PathProgramCache]: Analyzing trace with hash -278924554, now seen corresponding path program 1 times [2024-12-02 10:11:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:50,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578263903] [2024-12-02 10:11:50,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:50,033 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 [2024-12-02 10:11:50,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:50,034 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:50,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:50,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 10:11:50,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 10:11:50,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:11:50,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:50,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578263903] [2024-12-02 10:11:50,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578263903] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:50,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:50,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 10:11:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653126520] [2024-12-02 10:11:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:50,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:50,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:11:50,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:50,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:11:50,711 INFO L87 Difference]: Start difference. First operand 1208 states and 1379 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2024-12-02 10:11:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:50,979 INFO L93 Difference]: Finished difference Result 2388 states and 2730 transitions. [2024-12-02 10:11:50,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:11:50,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 [2024-12-02 10:11:50,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:50,982 INFO L225 Difference]: With dead ends: 2388 [2024-12-02 10:11:50,982 INFO L226 Difference]: Without dead ends: 1196 [2024-12-02 10:11:50,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:11:50,983 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 51 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:50,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 439 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:50,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2024-12-02 10:11:51,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1144. [2024-12-02 10:11:51,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1027 states have (on average 1.1207400194741968) internal successors, (1151), 1039 states have internal predecessors, (1151), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:11:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1309 transitions. [2024-12-02 10:11:51,079 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1309 transitions. Word has length 107 [2024-12-02 10:11:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:51,079 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1309 transitions. [2024-12-02 10:11:51,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2024-12-02 10:11:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1309 transitions. [2024-12-02 10:11:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:11:51,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:51,080 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] [2024-12-02 10:11:51,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:51,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:11:51,280 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:51,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:51,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1490412621, now seen corresponding path program 1 times [2024-12-02 10:11:51,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:11:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920534532] [2024-12-02 10:11:51,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:51,281 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 [2024-12-02 10:11:51,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:11:51,283 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:11:51,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (36)] Waiting until timeout for monitored process [2024-12-02 10:11:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:51,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 10:11:51,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:51,656 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 [2024-12-02 10:11:52,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:52,525 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 186 treesize of output 96 [2024-12-02 10:11:53,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:11:53,118 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 382 treesize of output 132 [2024-12-02 10:11:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:11:53,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:53,873 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:11:53,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920534532] [2024-12-02 10:11:53,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920534532] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:53,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2104138217] [2024-12-02 10:11:53,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:53,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 10:11:53,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 10:11:53,875 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 10:11:53,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-12-02 10:11:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:55,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 10:11:55,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:55,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-12-02 10:12:04,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:12:04,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 94 [2024-12-02 10:12:05,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:12:05,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 289 treesize of output 145 [2024-12-02 10:12:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:12:05,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:12:05,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2104138217] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:12:05,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:12:05,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 25 [2024-12-02 10:12:05,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569862983] [2024-12-02 10:12:05,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:12:05,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 10:12:05,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:12:05,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 10:12:05,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=873, Unknown=1, NotChecked=0, Total=992 [2024-12-02 10:12:05,348 INFO L87 Difference]: Start difference. First operand 1144 states and 1309 transitions. Second operand has 26 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 10:12:10,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:12:10,221 INFO L93 Difference]: Finished difference Result 1421 states and 1607 transitions. [2024-12-02 10:12:10,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 10:12:10,221 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) Word has length 107 [2024-12-02 10:12:10,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:12:10,226 INFO L225 Difference]: With dead ends: 1421 [2024-12-02 10:12:10,226 INFO L226 Difference]: Without dead ends: 1419 [2024-12-02 10:12:10,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=417, Invalid=2132, Unknown=1, NotChecked=0, Total=2550 [2024-12-02 10:12:10,227 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 587 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:12:10,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1333 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 10:12:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-12-02 10:12:10,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 944. [2024-12-02 10:12:10,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 827 states have (on average 1.1160822249093107) internal successors, (923), 839 states have internal predecessors, (923), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-12-02 10:12:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1081 transitions. [2024-12-02 10:12:10,343 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1081 transitions. Word has length 107 [2024-12-02 10:12:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:12:10,344 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1081 transitions. [2024-12-02 10:12:10,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 10:12:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1081 transitions. [2024-12-02 10:12:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:12:10,348 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:12:10,348 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] [2024-12-02 10:12:10,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-12-02 10:12:10,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (36)] Ended with exit code 0 [2024-12-02 10:12:10,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:12:10,749 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:12:10,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1229739150, now seen corresponding path program 1 times [2024-12-02 10:12:10,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:12:10,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473309774] [2024-12-02 10:12:10,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:10,749 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 [2024-12-02 10:12:10,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:12:10,751 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:12:10,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (38)] Waiting until timeout for monitored process [2024-12-02 10:12:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:11,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:12:11,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:12:11,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:12:11,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-12-02 10:12:11,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:12:11,516 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 53 [2024-12-02 10:12:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:12:11,577 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:12:11,577 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:12:11,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473309774] [2024-12-02 10:12:11,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473309774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:11,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:11,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:12:11,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517896634] [2024-12-02 10:12:11,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:11,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:12:11,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:12:11,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:12:11,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:12:11,579 INFO L87 Difference]: Start difference. First operand 944 states and 1081 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-12-02 10:12:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:12:12,458 INFO L93 Difference]: Finished difference Result 1126 states and 1297 transitions. [2024-12-02 10:12:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:12:12,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 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 108 [2024-12-02 10:12:12,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:12:12,463 INFO L225 Difference]: With dead ends: 1126 [2024-12-02 10:12:12,463 INFO L226 Difference]: Without dead ends: 1124 [2024-12-02 10:12:12,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:12:12,464 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 145 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:12:12,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1258 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:12:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-12-02 10:12:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 924. [2024-12-02 10:12:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 819 states have (on average 1.1172161172161172) internal successors, (915), 829 states have internal predecessors, (915), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 10:12:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1057 transitions. [2024-12-02 10:12:12,577 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1057 transitions. Word has length 108 [2024-12-02 10:12:12,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:12:12,577 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1057 transitions. [2024-12-02 10:12:12,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-12-02 10:12:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1057 transitions. [2024-12-02 10:12:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:12:12,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:12:12,578 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] [2024-12-02 10:12:12,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (38)] Ended with exit code 0 [2024-12-02 10:12:12,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:12:12,778 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:12:12,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:12,779 INFO L85 PathProgramCache]: Analyzing trace with hash 420392524, now seen corresponding path program 1 times [2024-12-02 10:12:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:12:12,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726057041] [2024-12-02 10:12:12,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:12,779 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 [2024-12-02 10:12:12,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:12:12,781 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:12:12,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (39)] Waiting until timeout for monitored process [2024-12-02 10:12:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:13,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:12:13,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:12:13,093 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 18 treesize of output 10 [2024-12-02 10:12:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:12:13,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:12:13,164 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:12:13,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726057041] [2024-12-02 10:12:13,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726057041] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:13,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:13,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:12:13,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932877595] [2024-12-02 10:12:13,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:13,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:12:13,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:12:13,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:12:13,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:12:13,164 INFO L87 Difference]: Start difference. First operand 924 states and 1057 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2024-12-02 10:12:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:12:13,671 INFO L93 Difference]: Finished difference Result 1862 states and 2128 transitions. [2024-12-02 10:12:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:12:13,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 108 [2024-12-02 10:12:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:12:13,675 INFO L225 Difference]: With dead ends: 1862 [2024-12-02 10:12:13,675 INFO L226 Difference]: Without dead ends: 954 [2024-12-02 10:12:13,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:12:13,676 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 27 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:12:13,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 466 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:12:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-12-02 10:12:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 922. [2024-12-02 10:12:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 817 states have (on average 1.1126070991432069) internal successors, (909), 827 states have internal predecessors, (909), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 10:12:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1051 transitions. [2024-12-02 10:12:13,773 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1051 transitions. Word has length 108 [2024-12-02 10:12:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:12:13,774 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1051 transitions. [2024-12-02 10:12:13,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2024-12-02 10:12:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1051 transitions. [2024-12-02 10:12:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:12:13,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:12:13,775 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] [2024-12-02 10:12:13,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (39)] Ended with exit code 0 [2024-12-02 10:12:13,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:12:13,976 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:12:13,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:13,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1291778764, now seen corresponding path program 1 times [2024-12-02 10:12:13,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:12:13,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601674030] [2024-12-02 10:12:13,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:13,977 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 [2024-12-02 10:12:13,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:12:13,978 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:12:13,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (40)] Waiting until timeout for monitored process [2024-12-02 10:12:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:14,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:12:14,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:12:14,251 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 18 treesize of output 10 [2024-12-02 10:12:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:12:14,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:12:14,264 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:12:14,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601674030] [2024-12-02 10:12:14,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601674030] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:14,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:14,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:12:14,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2879210] [2024-12-02 10:12:14,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:14,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:12:14,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:12:14,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:12:14,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:12:14,265 INFO L87 Difference]: Start difference. First operand 922 states and 1051 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 10:12:14,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:12:14,425 INFO L93 Difference]: Finished difference Result 1738 states and 1983 transitions. [2024-12-02 10:12:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:12:14,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 108 [2024-12-02 10:12:14,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:12:14,428 INFO L225 Difference]: With dead ends: 1738 [2024-12-02 10:12:14,428 INFO L226 Difference]: Without dead ends: 832 [2024-12-02 10:12:14,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:12:14,429 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:12:14,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:12:14,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-12-02 10:12:14,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2024-12-02 10:12:14,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 727 states have (on average 1.107290233837689) internal successors, (805), 737 states have internal predecessors, (805), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 10:12:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 947 transitions. [2024-12-02 10:12:14,530 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 947 transitions. Word has length 108 [2024-12-02 10:12:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:12:14,530 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 947 transitions. [2024-12-02 10:12:14,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 10:12:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 947 transitions. [2024-12-02 10:12:14,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 10:12:14,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:12:14,531 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] [2024-12-02 10:12:14,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (40)] Ended with exit code 0 [2024-12-02 10:12:14,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:12:14,731 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:12:14,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:14,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1654958547, now seen corresponding path program 1 times [2024-12-02 10:12:14,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:12:14,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302448581] [2024-12-02 10:12:14,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:14,732 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 [2024-12-02 10:12:14,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:12:14,734 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:12:14,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (41)] Waiting until timeout for monitored process [2024-12-02 10:12:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:14,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 10:12:14,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:12:15,232 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 33 treesize of output 15 [2024-12-02 10:12:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 10:12:15,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:12:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:12:15,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:12:15,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302448581] [2024-12-02 10:12:15,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302448581] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:12:15,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:12:15,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 10:12:15,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557220340] [2024-12-02 10:12:15,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:15,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:12:15,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:12:15,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:12:15,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:12:15,368 INFO L87 Difference]: Start difference. First operand 832 states and 947 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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) [2024-12-02 10:12:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:12:15,596 INFO L93 Difference]: Finished difference Result 1508 states and 1712 transitions. [2024-12-02 10:12:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:12:15,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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 [2024-12-02 10:12:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:12:15,599 INFO L225 Difference]: With dead ends: 1508 [2024-12-02 10:12:15,599 INFO L226 Difference]: Without dead ends: 692 [2024-12-02 10:12:15,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:12:15,600 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 40 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:12:15,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 420 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:12:15,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-12-02 10:12:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 658. [2024-12-02 10:12:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 553 states have (on average 1.0849909584086799) internal successors, (600), 563 states have internal predecessors, (600), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 10:12:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 742 transitions. [2024-12-02 10:12:15,700 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 742 transitions. Word has length 111 [2024-12-02 10:12:15,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:12:15,700 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 742 transitions. [2024-12-02 10:12:15,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 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) [2024-12-02 10:12:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 742 transitions. [2024-12-02 10:12:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 10:12:15,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:12:15,701 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] [2024-12-02 10:12:15,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (41)] Ended with exit code 0 [2024-12-02 10:12:15,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:12:15,901 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:12:15,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:15,902 INFO L85 PathProgramCache]: Analyzing trace with hash 497158722, now seen corresponding path program 1 times [2024-12-02 10:12:15,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:12:15,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945640805] [2024-12-02 10:12:15,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:15,902 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 [2024-12-02 10:12:15,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:12:15,904 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:12:15,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (42)] Waiting until timeout for monitored process [2024-12-02 10:12:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:16,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 10:12:16,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:12:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 10:12:16,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:12:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:12:16,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:12:16,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945640805] [2024-12-02 10:12:16,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945640805] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:12:16,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:12:16,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 10:12:16,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493724121] [2024-12-02 10:12:16,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:16,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:12:16,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:12:16,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:12:16,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:12:16,639 INFO L87 Difference]: Start difference. First operand 658 states and 742 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 10:12:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:12:16,878 INFO L93 Difference]: Finished difference Result 1316 states and 1478 transitions. [2024-12-02 10:12:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:12:16,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 112 [2024-12-02 10:12:16,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:12:16,880 INFO L225 Difference]: With dead ends: 1316 [2024-12-02 10:12:16,880 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:12:16,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:12:16,882 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 47 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:12:16,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 318 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:12:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:12:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:12:16,882 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) [2024-12-02 10:12:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:12:16,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2024-12-02 10:12:16,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:12:16,883 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:12:16,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 10:12:16,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:12:16,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:12:16,886 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:12:16,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 (42)] Ended with exit code 0 [2024-12-02 10:12:17,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca973e-a10e-4215-a82c-2b263d480b6c/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:12:17,089 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, 1, 1, 1] [2024-12-02 10:12:17,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 10:12:48,169 WARN L286 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 240 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 10:12:58,842 WARN L286 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 246 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 10:13:08,628 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 240 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 10:13:19,456 WARN L286 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 246 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 10:14:02,361 WARN L286 SmtUtils]: Spent 40.90s on a formula simplification. DAG size of input: 369 DAG size of output: 542 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 10:15:09,014 WARN L286 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 359 DAG size of output: 149 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:15:33,368 WARN L286 SmtUtils]: Spent 24.35s on a formula simplification. DAG size of input: 87 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:15:57,802 WARN L286 SmtUtils]: Spent 24.43s on a formula simplification. DAG size of input: 102 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:16:21,017 WARN L286 SmtUtils]: Spent 23.21s on a formula simplification. DAG size of input: 87 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:20:06,831 WARN L286 SmtUtils]: Spent 3.76m on a formula simplification. DAG size of input: 1428 DAG size of output: 74 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:20:30,522 WARN L286 SmtUtils]: Spent 23.69s on a formula simplification. DAG size of input: 102 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:21:37,436 WARN L286 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 359 DAG size of output: 149 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:22:49,421 WARN L286 SmtUtils]: Spent 1.20m on a formula simplification. DAG size of input: 258 DAG size of output: 132 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 10:23:26,274 WARN L286 SmtUtils]: Spent 36.85s on a formula simplification. DAG size of input: 156 DAG size of output: 58 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)