./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d61878ad7bbd2e78c0c21aa8a02e9f4c78650f9979388720421c5a099639b1a0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:10:29,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:10:29,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:10:29,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:10:29,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:10:29,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:10:29,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:10:29,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:10:29,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:10:29,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:10:29,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:10:29,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:10:29,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:10:29,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:10:29,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:10:29,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:10:29,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:10:29,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:10:29,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:10:29,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:10:29,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:10:29,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:10:29,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:10:29,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:10:29,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:10:29,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:10:29,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:10:29,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:10:29,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:10:29,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:10:29,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:10:29,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:10:29,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:10:29,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:10:29,345 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d61878ad7bbd2e78c0c21aa8a02e9f4c78650f9979388720421c5a099639b1a0 [2024-11-23 23:10:29,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:10:29,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:10:29,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:10:29,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:10:29,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:10:29,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i [2024-11-23 23:10:32,758 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/d47ab0df9/9aa67052eef340e29e3588ec39fcc9ee/FLAG91e4cf19c [2024-11-23 23:10:33,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:10:33,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i [2024-11-23 23:10:33,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/d47ab0df9/9aa67052eef340e29e3588ec39fcc9ee/FLAG91e4cf19c [2024-11-23 23:10:33,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/d47ab0df9/9aa67052eef340e29e3588ec39fcc9ee [2024-11-23 23:10:33,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:10:33,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:10:33,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:10:33,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:10:33,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:10:33,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1a14d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33, skipping insertion in model container [2024-11-23 23:10:33,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:10:33,499 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i[916,929] [2024-11-23 23:10:33,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:10:33,561 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:10:33,573 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i[916,929] [2024-11-23 23:10:33,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:10:33,627 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:10:33,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33 WrapperNode [2024-11-23 23:10:33,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:10:33,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:10:33,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:10:33,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:10:33,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,706 INFO L138 Inliner]: procedures = 30, calls = 130, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 400 [2024-11-23 23:10:33,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:10:33,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:10:33,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:10:33,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:10:33,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,728 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 23:10:33,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,742 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:10:33,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:10:33,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:10:33,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:10:33,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (1/1) ... [2024-11-23 23:10:33,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:10:33,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:33,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:10:33,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:10:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:10:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-23 23:10:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-23 23:10:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 23:10:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 23:10:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 23:10:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 23:10:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:10:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:10:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 23:10:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:10:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:10:33,991 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:10:33,993 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:10:34,621 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-23 23:10:34,621 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:10:34,636 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:10:34,639 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:10:34,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:10:34 BoogieIcfgContainer [2024-11-23 23:10:34,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:10:34,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:10:34,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:10:34,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:10:34,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:10:33" (1/3) ... [2024-11-23 23:10:34,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54786f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:10:34, skipping insertion in model container [2024-11-23 23:10:34,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:10:33" (2/3) ... [2024-11-23 23:10:34,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54786f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:10:34, skipping insertion in model container [2024-11-23 23:10:34,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:10:34" (3/3) ... [2024-11-23 23:10:34,653 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-67.i [2024-11-23 23:10:34,672 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:10:34,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-67.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:10:34,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:10:34,776 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;@45871869, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:10:34,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:10:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 79 states have internal predecessors, (109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:34,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:10:34,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:34,800 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:34,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:34,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash 742144131, now seen corresponding path program 1 times [2024-11-23 23:10:34,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:34,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286289281] [2024-11-23 23:10:34,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 23:10:35,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:35,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286289281] [2024-11-23 23:10:35,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286289281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:35,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605925303] [2024-11-23 23:10:35,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:35,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:35,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:35,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:35,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:10:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:35,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:10:35,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 23:10:35,632 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:10:35,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605925303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:35,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:10:35,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:10:35,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087453243] [2024-11-23 23:10:35,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:35,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:10:35,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:35,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:10:35,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:10:35,687 INFO L87 Difference]: Start difference. First operand has 93 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 79 states have internal predecessors, (109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:35,714 INFO L93 Difference]: Finished difference Result 179 states and 272 transitions. [2024-11-23 23:10:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:10:35,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2024-11-23 23:10:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:35,723 INFO L225 Difference]: With dead ends: 179 [2024-11-23 23:10:35,723 INFO L226 Difference]: Without dead ends: 89 [2024-11-23 23:10:35,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:10:35,729 INFO L435 NwaCegarLoop]: 126 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, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:35,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:10:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-23 23:10:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-23 23:10:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-11-23 23:10:35,781 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 104 [2024-11-23 23:10:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:35,782 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-11-23 23:10:35,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-11-23 23:10:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:10:35,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:35,786 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:35,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:10:35,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:10:35,991 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:35,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:35,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1977666007, now seen corresponding path program 1 times [2024-11-23 23:10:35,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:35,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061646753] [2024-11-23 23:10:35,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:35,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:36,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:36,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061646753] [2024-11-23 23:10:36,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061646753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:36,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:36,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:10:36,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639924977] [2024-11-23 23:10:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:36,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:10:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:36,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:10:36,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:36,504 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:36,577 INFO L93 Difference]: Finished difference Result 178 states and 253 transitions. [2024-11-23 23:10:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:10:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-23 23:10:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:36,580 INFO L225 Difference]: With dead ends: 178 [2024-11-23 23:10:36,580 INFO L226 Difference]: Without dead ends: 92 [2024-11-23 23:10:36,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:36,584 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:36,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 358 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:10:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-23 23:10:36,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2024-11-23 23:10:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2024-11-23 23:10:36,605 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 104 [2024-11-23 23:10:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:36,607 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2024-11-23 23:10:36,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:36,607 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2024-11-23 23:10:36,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:10:36,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:36,612 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:36,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:10:36,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:36,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:36,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1637242919, now seen corresponding path program 1 times [2024-11-23 23:10:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:36,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040567370] [2024-11-23 23:10:36,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:37,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:37,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040567370] [2024-11-23 23:10:37,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040567370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:37,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:37,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:10:37,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185356138] [2024-11-23 23:10:37,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:37,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:10:37,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:37,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:10:37,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:37,008 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:37,071 INFO L93 Difference]: Finished difference Result 182 states and 257 transitions. [2024-11-23 23:10:37,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:10:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-23 23:10:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:37,076 INFO L225 Difference]: With dead ends: 182 [2024-11-23 23:10:37,076 INFO L226 Difference]: Without dead ends: 94 [2024-11-23 23:10:37,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:37,078 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:37,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 359 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:10:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-23 23:10:37,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2024-11-23 23:10:37,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-11-23 23:10:37,096 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 104 [2024-11-23 23:10:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:37,097 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-23 23:10:37,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-11-23 23:10:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:10:37,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:37,103 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:37,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:10:37,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:37,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 137764443, now seen corresponding path program 1 times [2024-11-23 23:10:37,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:37,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570778973] [2024-11-23 23:10:37,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:37,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:37,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570778973] [2024-11-23 23:10:37,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570778973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:37,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:37,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:10:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703385950] [2024-11-23 23:10:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:37,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:10:37,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:37,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:10:37,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:37,382 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:37,424 INFO L93 Difference]: Finished difference Result 186 states and 261 transitions. [2024-11-23 23:10:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:10:37,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-23 23:10:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:37,427 INFO L225 Difference]: With dead ends: 186 [2024-11-23 23:10:37,427 INFO L226 Difference]: Without dead ends: 96 [2024-11-23 23:10:37,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:10:37,429 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:37,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 361 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:10:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-23 23:10:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-23 23:10:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-23 23:10:37,445 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 104 [2024-11-23 23:10:37,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:37,446 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-23 23:10:37,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-23 23:10:37,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:10:37,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:37,451 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:37,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:10:37,451 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:37,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 139611485, now seen corresponding path program 1 times [2024-11-23 23:10:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17899413] [2024-11-23 23:10:37,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17899413] [2024-11-23 23:10:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17899413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:43,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:43,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:10:43,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021230758] [2024-11-23 23:10:43,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:43,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:10:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:43,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:10:43,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:10:43,537 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:10:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:45,626 INFO L93 Difference]: Finished difference Result 312 states and 430 transitions. [2024-11-23 23:10:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:10:45,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2024-11-23 23:10:45,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:45,629 INFO L225 Difference]: With dead ends: 312 [2024-11-23 23:10:45,629 INFO L226 Difference]: Without dead ends: 220 [2024-11-23 23:10:45,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:10:45,631 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 255 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:45,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 669 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 23:10:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-23 23:10:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 114. [2024-11-23 23:10:45,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 99 states have (on average 1.3535353535353536) internal successors, (134), 99 states have internal predecessors, (134), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions. [2024-11-23 23:10:45,663 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 104 [2024-11-23 23:10:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:45,664 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-23 23:10:45,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:10:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions. [2024-11-23 23:10:45,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:10:45,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:45,669 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:45,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:10:45,669 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:45,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:45,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1665826849, now seen corresponding path program 1 times [2024-11-23 23:10:45,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:45,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692244507] [2024-11-23 23:10:45,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:45,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692244507] [2024-11-23 23:10:45,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692244507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:45,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:45,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:10:45,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041210204] [2024-11-23 23:10:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:45,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:10:45,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:45,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:10:45,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:10:45,783 INFO L87 Difference]: Start difference. First operand 114 states and 158 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:45,882 INFO L93 Difference]: Finished difference Result 279 states and 387 transitions. [2024-11-23 23:10:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:10:45,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-23 23:10:45,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:45,884 INFO L225 Difference]: With dead ends: 279 [2024-11-23 23:10:45,885 INFO L226 Difference]: Without dead ends: 168 [2024-11-23 23:10:45,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:10:45,887 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 61 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:45,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 315 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:10:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-23 23:10:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 128. [2024-11-23 23:10:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 113 states have (on average 1.3716814159292035) internal successors, (155), 113 states have internal predecessors, (155), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 179 transitions. [2024-11-23 23:10:45,914 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 179 transitions. Word has length 104 [2024-11-23 23:10:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:45,914 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 179 transitions. [2024-11-23 23:10:45,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 179 transitions. [2024-11-23 23:10:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:10:45,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:45,916 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:45,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:10:45,917 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:45,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash 58712133, now seen corresponding path program 1 times [2024-11-23 23:10:45,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:45,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785645319] [2024-11-23 23:10:45,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:45,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:48,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:48,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785645319] [2024-11-23 23:10:48,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785645319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:48,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:48,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:10:48,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123933872] [2024-11-23 23:10:48,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:48,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:10:48,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:48,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:10:48,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:10:48,496 INFO L87 Difference]: Start difference. First operand 128 states and 179 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:49,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:49,081 INFO L93 Difference]: Finished difference Result 294 states and 408 transitions. [2024-11-23 23:10:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:10:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-23 23:10:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:49,085 INFO L225 Difference]: With dead ends: 294 [2024-11-23 23:10:49,085 INFO L226 Difference]: Without dead ends: 169 [2024-11-23 23:10:49,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:10:49,087 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 59 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:49,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 397 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:10:49,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-23 23:10:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 115. [2024-11-23 23:10:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 100 states have (on average 1.34) internal successors, (134), 100 states have internal predecessors, (134), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:10:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2024-11-23 23:10:49,112 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 105 [2024-11-23 23:10:49,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:49,113 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2024-11-23 23:10:49,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:49,114 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2024-11-23 23:10:49,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:10:49,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:49,116 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:49,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:10:49,117 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:49,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1509351380, now seen corresponding path program 1 times [2024-11-23 23:10:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:49,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102298574] [2024-11-23 23:10:49,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:49,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:50,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:50,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102298574] [2024-11-23 23:10:50,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102298574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:50,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:50,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:10:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918482284] [2024-11-23 23:10:50,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:50,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:10:50,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:50,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:10:50,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:10:50,351 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:50,838 INFO L93 Difference]: Finished difference Result 307 states and 419 transitions. [2024-11-23 23:10:50,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:10:50,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-23 23:10:50,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:50,841 INFO L225 Difference]: With dead ends: 307 [2024-11-23 23:10:50,841 INFO L226 Difference]: Without dead ends: 195 [2024-11-23 23:10:50,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:10:50,842 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 66 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:50,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 544 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:10:50,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-23 23:10:50,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 192. [2024-11-23 23:10:50,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 171 states have (on average 1.3391812865497077) internal successors, (229), 172 states have internal predecessors, (229), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:10:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 261 transitions. [2024-11-23 23:10:50,867 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 261 transitions. Word has length 108 [2024-11-23 23:10:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:50,867 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 261 transitions. [2024-11-23 23:10:50,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 261 transitions. [2024-11-23 23:10:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:10:50,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:50,870 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:50,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:10:50,871 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:50,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash 384480689, now seen corresponding path program 1 times [2024-11-23 23:10:50,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:50,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158901967] [2024-11-23 23:10:50,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:50,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:52,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:52,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158901967] [2024-11-23 23:10:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158901967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:52,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:52,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:10:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792651742] [2024-11-23 23:10:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:52,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:10:52,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:52,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:10:52,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:10:52,107 INFO L87 Difference]: Start difference. First operand 192 states and 261 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:52,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:52,768 INFO L93 Difference]: Finished difference Result 440 states and 601 transitions. [2024-11-23 23:10:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:10:52,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:10:52,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:52,773 INFO L225 Difference]: With dead ends: 440 [2024-11-23 23:10:52,773 INFO L226 Difference]: Without dead ends: 251 [2024-11-23 23:10:52,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:10:52,775 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 51 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:52,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 570 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:10:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-23 23:10:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 220. [2024-11-23 23:10:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 199 states have (on average 1.3618090452261307) internal successors, (271), 200 states have internal predecessors, (271), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:10:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 303 transitions. [2024-11-23 23:10:52,798 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 303 transitions. Word has length 110 [2024-11-23 23:10:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:52,799 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 303 transitions. [2024-11-23 23:10:52,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 303 transitions. [2024-11-23 23:10:52,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:10:52,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:52,800 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:52,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:10:52,801 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:52,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash 933527345, now seen corresponding path program 1 times [2024-11-23 23:10:52,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:52,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700746695] [2024-11-23 23:10:52,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:52,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:53,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:53,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700746695] [2024-11-23 23:10:53,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700746695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:53,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:53,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:10:53,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009684585] [2024-11-23 23:10:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:53,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:10:53,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:53,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:10:53,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:10:53,976 INFO L87 Difference]: Start difference. First operand 220 states and 303 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:54,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:54,783 INFO L93 Difference]: Finished difference Result 441 states and 607 transitions. [2024-11-23 23:10:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:10:54,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:10:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:54,785 INFO L225 Difference]: With dead ends: 441 [2024-11-23 23:10:54,785 INFO L226 Difference]: Without dead ends: 224 [2024-11-23 23:10:54,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:10:54,787 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 61 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:54,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 647 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:10:54,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-23 23:10:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2024-11-23 23:10:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 201 states have (on average 1.3582089552238805) internal successors, (273), 202 states have internal predecessors, (273), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:10:54,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 305 transitions. [2024-11-23 23:10:54,814 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 305 transitions. Word has length 110 [2024-11-23 23:10:54,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:54,815 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 305 transitions. [2024-11-23 23:10:54,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:54,815 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 305 transitions. [2024-11-23 23:10:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:10:54,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:54,818 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:54,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:10:54,819 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:54,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash 565164696, now seen corresponding path program 1 times [2024-11-23 23:10:54,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:54,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406311126] [2024-11-23 23:10:54,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:54,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406311126] [2024-11-23 23:10:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406311126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:10:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996047328] [2024-11-23 23:10:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:10:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:55,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:10:55,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:10:55,525 INFO L87 Difference]: Start difference. First operand 222 states and 305 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:55,936 INFO L93 Difference]: Finished difference Result 549 states and 750 transitions. [2024-11-23 23:10:55,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:10:55,936 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-23 23:10:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:55,939 INFO L225 Difference]: With dead ends: 549 [2024-11-23 23:10:55,939 INFO L226 Difference]: Without dead ends: 330 [2024-11-23 23:10:55,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:10:55,941 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 60 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:55,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 375 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:10:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-23 23:10:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 248. [2024-11-23 23:10:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 227 states have (on average 1.3700440528634361) internal successors, (311), 228 states have internal predecessors, (311), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:10:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 343 transitions. [2024-11-23 23:10:55,971 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 343 transitions. Word has length 111 [2024-11-23 23:10:55,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:55,973 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 343 transitions. [2024-11-23 23:10:55,973 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 343 transitions. [2024-11-23 23:10:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:10:55,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:55,975 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:55,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:10:55,976 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:55,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:55,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2059958937, now seen corresponding path program 1 times [2024-11-23 23:10:55,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:55,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075429549] [2024-11-23 23:10:55,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:56,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:56,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075429549] [2024-11-23 23:10:56,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075429549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:56,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:56,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:10:56,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373572951] [2024-11-23 23:10:56,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:56,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:10:56,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:56,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:10:56,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:10:56,616 INFO L87 Difference]: Start difference. First operand 248 states and 343 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:57,006 INFO L93 Difference]: Finished difference Result 573 states and 784 transitions. [2024-11-23 23:10:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:10:57,007 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-23 23:10:57,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:57,009 INFO L225 Difference]: With dead ends: 573 [2024-11-23 23:10:57,009 INFO L226 Difference]: Without dead ends: 328 [2024-11-23 23:10:57,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:10:57,011 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 65 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:57,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 445 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:10:57,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-23 23:10:57,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 248. [2024-11-23 23:10:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 227 states have (on average 1.3612334801762114) internal successors, (309), 228 states have internal predecessors, (309), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:10:57,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 341 transitions. [2024-11-23 23:10:57,031 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 341 transitions. Word has length 111 [2024-11-23 23:10:57,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:57,032 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 341 transitions. [2024-11-23 23:10:57,032 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:10:57,032 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 341 transitions. [2024-11-23 23:10:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:10:57,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:57,034 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:57,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:10:57,034 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:57,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1588941123, now seen corresponding path program 1 times [2024-11-23 23:10:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:57,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351908400] [2024-11-23 23:10:57,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:57,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:57,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351908400] [2024-11-23 23:10:57,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351908400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:57,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:57,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:10:57,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833651698] [2024-11-23 23:10:57,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:57,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:10:57,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:57,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:10:57,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:10:57,872 INFO L87 Difference]: Start difference. First operand 248 states and 341 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:58,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:58,241 INFO L93 Difference]: Finished difference Result 633 states and 850 transitions. [2024-11-23 23:10:58,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:10:58,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-23 23:10:58,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:58,244 INFO L225 Difference]: With dead ends: 633 [2024-11-23 23:10:58,245 INFO L226 Difference]: Without dead ends: 388 [2024-11-23 23:10:58,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:10:58,246 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 108 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:58,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 304 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:10:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-23 23:10:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 385. [2024-11-23 23:10:58,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 350 states have (on average 1.302857142857143) internal successors, (456), 353 states have internal predecessors, (456), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 23:10:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 508 transitions. [2024-11-23 23:10:58,291 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 508 transitions. Word has length 112 [2024-11-23 23:10:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:58,291 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 508 transitions. [2024-11-23 23:10:58,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:10:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 508 transitions. [2024-11-23 23:10:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:10:58,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:58,295 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:58,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:10:58,295 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:58,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1915206794, now seen corresponding path program 1 times [2024-11-23 23:10:58,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126109438] [2024-11-23 23:10:58,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:10:59,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:59,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126109438] [2024-11-23 23:10:59,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126109438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:59,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:59,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:10:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981212443] [2024-11-23 23:10:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:59,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:10:59,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:59,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:10:59,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:10:59,502 INFO L87 Difference]: Start difference. First operand 385 states and 508 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:11:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:00,018 INFO L93 Difference]: Finished difference Result 421 states and 548 transitions. [2024-11-23 23:11:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:11:00,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-23 23:11:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:00,022 INFO L225 Difference]: With dead ends: 421 [2024-11-23 23:11:00,022 INFO L226 Difference]: Without dead ends: 419 [2024-11-23 23:11:00,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:11:00,023 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 53 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:00,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 519 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:11:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-23 23:11:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 318. [2024-11-23 23:11:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 288 states have (on average 1.2986111111111112) internal successors, (374), 290 states have internal predecessors, (374), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 23:11:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 418 transitions. [2024-11-23 23:11:00,070 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 418 transitions. Word has length 112 [2024-11-23 23:11:00,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:00,070 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 418 transitions. [2024-11-23 23:11:00,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:11:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 418 transitions. [2024-11-23 23:11:00,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:11:00,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:00,074 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:00,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:11:00,075 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:00,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:00,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1913359752, now seen corresponding path program 1 times [2024-11-23 23:11:00,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:00,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121009515] [2024-11-23 23:11:00,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:00,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:11:00,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316635872] [2024-11-23 23:11:00,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:00,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:00,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:00,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:00,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:11:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:11:01,010 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:11:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:11:01,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:11:01,962 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:11:01,963 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:11:01,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:11:02,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 23:11:02,171 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:02,226 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:11:02,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:11:02 BoogieIcfgContainer [2024-11-23 23:11:02,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:11:02,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:11:02,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:11:02,230 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:11:02,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:10:34" (3/4) ... [2024-11-23 23:11:02,233 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:11:02,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:11:02,235 INFO L158 Benchmark]: Toolchain (without parser) took 28912.41ms. Allocated memory was 117.4MB in the beginning and 629.1MB in the end (delta: 511.7MB). Free memory was 94.1MB in the beginning and 231.0MB in the end (delta: -136.9MB). Peak memory consumption was 373.1MB. Max. memory is 16.1GB. [2024-11-23 23:11:02,235 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:11:02,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.31ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 78.5MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:11:02,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.72ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:11:02,236 INFO L158 Benchmark]: Boogie Preprocessor took 44.83ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:11:02,236 INFO L158 Benchmark]: RCFGBuilder took 883.47ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 43.9MB in the end (delta: 28.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-23 23:11:02,237 INFO L158 Benchmark]: TraceAbstraction took 27587.14ms. Allocated memory was 117.4MB in the beginning and 629.1MB in the end (delta: 511.7MB). Free memory was 43.5MB in the beginning and 231.1MB in the end (delta: -187.6MB). Peak memory consumption was 322.8MB. Max. memory is 16.1GB. [2024-11-23 23:11:02,237 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 629.1MB. Free memory was 231.1MB in the beginning and 231.0MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:11:02,239 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.31ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 78.5MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.72ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.83ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 883.47ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 43.9MB in the end (delta: 28.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27587.14ms. Allocated memory was 117.4MB in the beginning and 629.1MB in the end (delta: 511.7MB). Free memory was 43.5MB in the beginning and 231.1MB in the end (delta: -187.6MB). Peak memory consumption was 322.8MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 629.1MB. Free memory was 231.1MB in the beginning and 231.0MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 111. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 2, -64, 256, 128, 256, 50, 0, -4, 15.125, 0.9, 25.875, 50 }; [L51] signed short int last_1_WrapperStruct00_var_1_1 = 2; [L52] unsigned short int last_1_WrapperStruct00_var_1_6 = 128; [L53] signed long int last_1_WrapperStruct00_var_1_8 = 50; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L115] isInitial = 1 [L116] FCALL initially() [L118] CALL updateLastVariables() [L106] EXPR WrapperStruct00.var_1_1 [L106] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L107] EXPR WrapperStruct00.var_1_6 [L107] last_1_WrapperStruct00_var_1_6 = WrapperStruct00.var_1_6 [L108] EXPR WrapperStruct00.var_1_8 [L108] last_1_WrapperStruct00_var_1_8 = WrapperStruct00.var_1_8 [L118] RET updateLastVariables() [L119] CALL updateVariables() [L86] WrapperStruct00.var_1_4 = __VERIFIER_nondet_short() [L87] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= -16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= -16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L88] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L89] WrapperStruct00.var_1_5 = __VERIFIER_nondet_short() [L90] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= -16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= -16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L91] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L92] WrapperStruct00.var_1_7 = __VERIFIER_nondet_ushort() [L93] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L95] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L96] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L98] WrapperStruct00.var_1_10 = __VERIFIER_nondet_long() [L99] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= -2147483648) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= -2147483648) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L100] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L101] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_10 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_10 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L102] WrapperStruct00.var_1_12 = __VERIFIER_nondet_float() [L103] EXPR WrapperStruct00.var_1_12 [L103] EXPR WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F [L103] EXPR WrapperStruct00.var_1_12 [L103] EXPR WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L103] EXPR (WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L103] CALL assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L103] RET assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L119] RET updateVariables() [L120] CALL step() [L57] COND TRUE ! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1) [L58] EXPR WrapperStruct00.var_1_4 [L58] EXPR WrapperStruct00.var_1_5 [L58] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L60] EXPR WrapperStruct00.var_1_4 [L60] signed long int stepLocal_0 = 1 * WrapperStruct00.var_1_4; [L61] EXPR WrapperStruct00.var_1_1 [L61] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50, stepLocal_0=-105] [L61] EXPR WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50, stepLocal_0=-105] [L61] COND FALSE !((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > stepLocal_0) [L64] EXPR WrapperStruct00.var_1_7 [L64] WrapperStruct00.var_1_6 = WrapperStruct00.var_1_7 [L66] EXPR WrapperStruct00.var_1_12 [L66] WrapperStruct00.var_1_11 = WrapperStruct00.var_1_12 [L67] EXPR WrapperStruct00.var_1_12 [L67] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_12 [L68] EXPR WrapperStruct00.var_1_7 [L68] WrapperStruct00.var_1_14 = WrapperStruct00.var_1_7 [L69] EXPR WrapperStruct00.var_1_4 [L69] EXPR WrapperStruct00.var_1_10 [L69] signed long int stepLocal_2 = WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10; [L70] EXPR WrapperStruct00.var_1_7 [L70] unsigned short int stepLocal_1 = WrapperStruct00.var_1_7; [L71] WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50, stepLocal_1=-65485, stepLocal_2=52] [L71] COND FALSE !(WrapperStruct00.var_1_9) [L74] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50, stepLocal_1=-65485, stepLocal_2=52] [L74] COND FALSE !(WrapperStruct00.var_1_14 > stepLocal_2) [L81] EXPR WrapperStruct00.var_1_6 [L81] EXPR WrapperStruct00.var_1_5 [L81] WrapperStruct00.var_1_8 = (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5) [L120] RET step() [L121] CALL, EXPR property() [L111] EXPR (! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1 [L111] EXPR WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_4 [L111] EXPR WrapperStruct00.var_1_5 [L111] EXPR (! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR ((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7))) [L111] EXPR WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR ((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)) [L111] EXPR WrapperStruct00.var_1_6 [L111] EXPR WrapperStruct00.var_1_7 [L111] EXPR ((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR ((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR (((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5))))) [L111] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))) [L111] EXPR WrapperStruct00.var_1_14 [L111] EXPR WrapperStruct00.var_1_4 [L111] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR (WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5))) [L111] EXPR WrapperStruct00.var_1_8 [L111] EXPR WrapperStruct00.var_1_6 [L111] EXPR WrapperStruct00.var_1_5 [L111] EXPR (WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR (((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR ((((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))))) && (WrapperStruct00.var_1_11 == ((float) WrapperStruct00.var_1_12)) [L111] EXPR WrapperStruct00.var_1_11 [L111] EXPR WrapperStruct00.var_1_12 [L111] EXPR ((((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))))) && (WrapperStruct00.var_1_11 == ((float) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR (((((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))))) && (WrapperStruct00.var_1_11 == ((float) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_12)) [L111] EXPR WrapperStruct00.var_1_13 [L111] EXPR WrapperStruct00.var_1_12 [L111] EXPR (((((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))))) && (WrapperStruct00.var_1_11 == ((float) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111] EXPR ((((((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))))) && (WrapperStruct00.var_1_11 == ((float) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_14 == ((unsigned short int) WrapperStruct00.var_1_7)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L111-L112] return ((((((! (last_1_WrapperStruct00_var_1_6 <= last_1_WrapperStruct00_var_1_1)) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (((WrapperStruct00.var_1_1 >> WrapperStruct00.var_1_5) > (1 * WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_6 == ((unsigned short int) (((((42286 - WrapperStruct00.var_1_7)) > (0)) ? ((42286 - WrapperStruct00.var_1_7)) : (0))))) : (WrapperStruct00.var_1_6 == ((unsigned short int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_6) < (last_1_WrapperStruct00_var_1_8)) ? (WrapperStruct00.var_1_6) : (last_1_WrapperStruct00_var_1_8))))) : ((WrapperStruct00.var_1_14 > (WrapperStruct00.var_1_4 / WrapperStruct00.var_1_10)) ? ((WrapperStruct00.var_1_7 > WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((signed long int) ((((WrapperStruct00.var_1_4) < (100)) ? (WrapperStruct00.var_1_4) : (100))))) : (WrapperStruct00.var_1_8 == ((signed long int) (last_1_WrapperStruct00_var_1_8 - WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_8 == ((signed long int) (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_5)))))) && (WrapperStruct00.var_1_11 == ((float) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_14 == ((unsigned short int) WrapperStruct00.var_1_7)) ; [L121] RET, EXPR property() [L121] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=2, last_1_WrapperStruct00_var_1_6=128, last_1_WrapperStruct00_var_1_8=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.5s, OverallIterations: 15, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 846 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 842 mSDsluCounter, 5989 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4293 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3059 IncrementalHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 1696 mSDtfsCounter, 3059 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 289 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=13, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 505 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 1831 NumberOfCodeBlocks, 1831 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1592 ConstructedInterpolants, 0 QuantifiedInterpolants, 7161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 3938/3960 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 [2024-11-23 23:11:02,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d61878ad7bbd2e78c0c21aa8a02e9f4c78650f9979388720421c5a099639b1a0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:11:04,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:11:04,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:11:04,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:11:04,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:11:04,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:11:04,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:11:04,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:11:04,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:11:04,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:11:04,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:11:04,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:11:04,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:11:04,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:11:04,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:11:04,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:11:04,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:11:04,983 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:11:04,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:11:04,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:11:04,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:11:04,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:11:04,984 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d61878ad7bbd2e78c0c21aa8a02e9f4c78650f9979388720421c5a099639b1a0 [2024-11-23 23:11:05,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:11:05,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:11:05,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:11:05,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:11:05,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:11:05,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i [2024-11-23 23:11:08,292 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/2399c8cf6/005c54b458a942dcb830ea0ee1ee537e/FLAGf97294ec0 [2024-11-23 23:11:08,560 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:11:08,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i [2024-11-23 23:11:08,573 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/2399c8cf6/005c54b458a942dcb830ea0ee1ee537e/FLAGf97294ec0 [2024-11-23 23:11:08,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/data/2399c8cf6/005c54b458a942dcb830ea0ee1ee537e [2024-11-23 23:11:08,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:11:08,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:11:08,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:11:08,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:11:08,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:11:08,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:11:08" (1/1) ... [2024-11-23 23:11:08,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bfb1be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:08, skipping insertion in model container [2024-11-23 23:11:08,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:11:08" (1/1) ... [2024-11-23 23:11:08,651 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:11:08,826 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i[916,929] [2024-11-23 23:11:08,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:11:08,924 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:11:08,942 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_116ff2d2-f284-4be9-880e-7e86a3f94b0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-67.i[916,929] [2024-11-23 23:11:09,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:11:09,049 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:11:09,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09 WrapperNode [2024-11-23 23:11:09,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:11:09,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:11:09,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:11:09,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:11:09,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,110 INFO L138 Inliner]: procedures = 40, calls = 130, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 382 [2024-11-23 23:11:09,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:11:09,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:11:09,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:11:09,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:11:09,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,156 INFO L175 MemorySlicer]: Split 107 memory accesses to 2 slices as follows [2, 105]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-11-23 23:11:09,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,176 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:11:09,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:11:09,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:11:09,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:11:09,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (1/1) ... [2024-11-23 23:11:09,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:11:09,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:09,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:11:09,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:11:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:11:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-23 23:11:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 23:11:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-23 23:11:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-23 23:11:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 23:11:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 23:11:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-23 23:11:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-23 23:11:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-23 23:11:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-23 23:11:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-23 23:11:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-23 23:11:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-23 23:11:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-23 23:11:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:11:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:11:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-23 23:11:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-23 23:11:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-23 23:11:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-23 23:11:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-23 23:11:09,449 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:11:09,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:11:10,528 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-23 23:11:10,528 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:11:10,545 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:11:10,545 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:11:10,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:11:10 BoogieIcfgContainer [2024-11-23 23:11:10,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:11:10,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:11:10,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:11:10,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:11:10,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:11:08" (1/3) ... [2024-11-23 23:11:10,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ee20fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:11:10, skipping insertion in model container [2024-11-23 23:11:10,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:11:09" (2/3) ... [2024-11-23 23:11:10,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ee20fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:11:10, skipping insertion in model container [2024-11-23 23:11:10,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:11:10" (3/3) ... [2024-11-23 23:11:10,556 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-67.i [2024-11-23 23:11:10,571 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:11:10,572 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-67.i that has 2 procedures, 88 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:11:10,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:11:10,641 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;@6a6d624e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:11:10,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:11:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 74 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:11:10,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:10,660 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:10,661 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:10,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:10,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1790845596, now seen corresponding path program 1 times [2024-11-23 23:11:10,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:10,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825212270] [2024-11-23 23:11:10,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:10,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:10,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:10,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:10,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 23:11:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:11,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:11:11,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-23 23:11:11,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:11,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:11,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825212270] [2024-11-23 23:11:11,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825212270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:11,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:11,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:11:11,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208567516] [2024-11-23 23:11:11,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:11,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:11:11,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:11,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:11:11,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:11:11,234 INFO L87 Difference]: Start difference. First operand has 88 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 74 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:11:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:11,274 INFO L93 Difference]: Finished difference Result 169 states and 258 transitions. [2024-11-23 23:11:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:11:11,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-11-23 23:11:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:11,283 INFO L225 Difference]: With dead ends: 169 [2024-11-23 23:11:11,284 INFO L226 Difference]: Without dead ends: 84 [2024-11-23 23:11:11,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:11:11,292 INFO L435 NwaCegarLoop]: 119 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, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:11,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:11:11,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-23 23:11:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-23 23:11:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 70 states have internal predecessors, (95), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:11,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2024-11-23 23:11:11,347 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 103 [2024-11-23 23:11:11,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:11,348 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2024-11-23 23:11:11,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:11:11,349 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2024-11-23 23:11:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:11:11,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:11,353 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:11,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 23:11:11,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:11,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:11,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:11,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2128335248, now seen corresponding path program 1 times [2024-11-23 23:11:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:11,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48200078] [2024-11-23 23:11:11,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:11,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:11,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:11,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:11,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 23:11:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:12,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:11:12,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:12,121 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:12,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:12,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48200078] [2024-11-23 23:11:12,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48200078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:12,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:12,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:11:12,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199960864] [2024-11-23 23:11:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:12,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:11:12,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:12,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:11:12,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:11:12,125 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:12,238 INFO L93 Difference]: Finished difference Result 170 states and 242 transitions. [2024-11-23 23:11:12,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:11:12,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-23 23:11:12,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:12,243 INFO L225 Difference]: With dead ends: 170 [2024-11-23 23:11:12,243 INFO L226 Difference]: Without dead ends: 89 [2024-11-23 23:11:12,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:11:12,246 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:12,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 440 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:11:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-23 23:11:12,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-23 23:11:12,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.337837837837838) internal successors, (99), 74 states have internal predecessors, (99), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:12,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-11-23 23:11:12,266 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 103 [2024-11-23 23:11:12,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:12,268 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-23 23:11:12,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-11-23 23:11:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:11:12,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:12,274 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:12,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:12,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:12,474 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:12,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:12,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1486573678, now seen corresponding path program 1 times [2024-11-23 23:11:12,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:12,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025810119] [2024-11-23 23:11:12,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:12,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:12,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:12,480 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:12,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 23:11:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:12,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:11:12,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:12,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:12,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:12,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025810119] [2024-11-23 23:11:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025810119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:12,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:11:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380307374] [2024-11-23 23:11:12,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:12,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:11:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:12,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:11:12,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:11:12,894 INFO L87 Difference]: Start difference. First operand 88 states and 123 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:13,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:13,139 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2024-11-23 23:11:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:11:13,140 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-23 23:11:13,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:13,141 INFO L225 Difference]: With dead ends: 176 [2024-11-23 23:11:13,142 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 23:11:13,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:11:13,143 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:13,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 540 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:11:13,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 23:11:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2024-11-23 23:11:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 76 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 125 transitions. [2024-11-23 23:11:13,151 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 125 transitions. Word has length 103 [2024-11-23 23:11:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:13,152 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 125 transitions. [2024-11-23 23:11:13,152 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 125 transitions. [2024-11-23 23:11:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:11:13,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:13,154 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:13,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:13,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:13,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:13,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:13,356 INFO L85 PathProgramCache]: Analyzing trace with hash 288433684, now seen corresponding path program 1 times [2024-11-23 23:11:13,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:13,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946083705] [2024-11-23 23:11:13,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:13,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:13,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:13,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:13,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 23:11:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:13,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:11:13,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:13,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:13,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:13,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946083705] [2024-11-23 23:11:13,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946083705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:13,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:13,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:11:13,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013394175] [2024-11-23 23:11:13,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:13,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:11:13,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:13,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:11:13,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:11:13,761 INFO L87 Difference]: Start difference. First operand 90 states and 125 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:14,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:14,020 INFO L93 Difference]: Finished difference Result 180 states and 251 transitions. [2024-11-23 23:11:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:11:14,021 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-23 23:11:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:14,022 INFO L225 Difference]: With dead ends: 180 [2024-11-23 23:11:14,022 INFO L226 Difference]: Without dead ends: 93 [2024-11-23 23:11:14,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:11:14,023 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 1 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:14,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 641 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:11:14,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-23 23:11:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2024-11-23 23:11:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 78 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 127 transitions. [2024-11-23 23:11:14,033 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 127 transitions. Word has length 103 [2024-11-23 23:11:14,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:14,033 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 127 transitions. [2024-11-23 23:11:14,034 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2024-11-23 23:11:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:11:14,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:14,036 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:14,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-23 23:11:14,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:14,236 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:14,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash 290280726, now seen corresponding path program 1 times [2024-11-23 23:11:14,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:14,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242623190] [2024-11-23 23:11:14,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:14,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:14,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:14,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:14,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-23 23:11:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:14,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-23 23:11:14,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:14,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:11:15,127 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 37 treesize of output 30 [2024-11-23 23:11:16,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:16,372 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 69 treesize of output 53 [2024-11-23 23:11:16,990 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:16,990 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 79 treesize of output 66 [2024-11-23 23:11:17,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:17,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 69 [2024-11-23 23:11:18,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:18,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 69 [2024-11-23 23:11:19,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:19,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 106 treesize of output 84 [2024-11-23 23:11:19,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:19,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 100 [2024-11-23 23:11:19,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:19,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 168 treesize of output 143 [2024-11-23 23:11:20,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:20,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 192 treesize of output 167 [2024-11-23 23:11:21,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:21,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 253 treesize of output 121 [2024-11-23 23:11:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 104 proven. 96 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:11:21,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:22,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242623190] [2024-11-23 23:11:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242623190] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:22,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:22,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [28] total 32 [2024-11-23 23:11:22,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152119502] [2024-11-23 23:11:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:22,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:11:22,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:22,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:11:22,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=814, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:11:22,057 INFO L87 Difference]: Start difference. First operand 92 states and 127 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:23,765 INFO L93 Difference]: Finished difference Result 237 states and 328 transitions. [2024-11-23 23:11:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:11:23,766 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-23 23:11:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:23,770 INFO L225 Difference]: With dead ends: 237 [2024-11-23 23:11:23,770 INFO L226 Difference]: Without dead ends: 148 [2024-11-23 23:11:23,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=190, Invalid=932, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 23:11:23,771 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 58 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:23,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 476 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:11:23,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-23 23:11:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 108. [2024-11-23 23:11:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 94 states have (on average 1.351063829787234) internal successors, (127), 94 states have internal predecessors, (127), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 151 transitions. [2024-11-23 23:11:23,786 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 151 transitions. Word has length 103 [2024-11-23 23:11:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:23,787 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 151 transitions. [2024-11-23 23:11:23,787 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 151 transitions. [2024-11-23 23:11:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:11:23,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:23,789 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:23,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-23 23:11:23,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:23,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:23,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:23,990 INFO L85 PathProgramCache]: Analyzing trace with hash 509135444, now seen corresponding path program 1 times [2024-11-23 23:11:23,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:23,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610683072] [2024-11-23 23:11:23,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:23,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:23,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:23,993 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:23,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-23 23:11:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:24,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:11:24,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:24,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:24,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:24,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610683072] [2024-11-23 23:11:24,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610683072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:24,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:24,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:11:24,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94378337] [2024-11-23 23:11:24,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:24,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:11:24,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:24,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:11:24,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:24,317 INFO L87 Difference]: Start difference. First operand 108 states and 151 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:24,498 INFO L93 Difference]: Finished difference Result 246 states and 342 transitions. [2024-11-23 23:11:24,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:11:24,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-23 23:11:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:24,500 INFO L225 Difference]: With dead ends: 246 [2024-11-23 23:11:24,500 INFO L226 Difference]: Without dead ends: 141 [2024-11-23 23:11:24,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:24,505 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 55 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:24,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 292 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:11:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-23 23:11:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 104. [2024-11-23 23:11:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 90 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:11:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 145 transitions. [2024-11-23 23:11:24,525 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 145 transitions. Word has length 103 [2024-11-23 23:11:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:24,525 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 145 transitions. [2024-11-23 23:11:24,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 145 transitions. [2024-11-23 23:11:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:11:24,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:24,531 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:24,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:24,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:24,731 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:24,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1527356088, now seen corresponding path program 1 times [2024-11-23 23:11:24,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587025904] [2024-11-23 23:11:24,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:24,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:24,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:24,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-23 23:11:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:25,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 23:11:25,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:25,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:11:25,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:25,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:25,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:25,322 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 27 treesize of output 15 [2024-11-23 23:11:25,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-11-23 23:11:25,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:25,380 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 78 treesize of output 50 [2024-11-23 23:11:25,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:25,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 80 [2024-11-23 23:11:25,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:25,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 133 treesize of output 55 [2024-11-23 23:11:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:11:25,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:26,087 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:26,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587025904] [2024-11-23 23:11:26,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587025904] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:26,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:26,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 14 [2024-11-23 23:11:26,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024911244] [2024-11-23 23:11:26,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:26,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:11:26,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:26,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:11:26,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:11:26,089 INFO L87 Difference]: Start difference. First operand 104 states and 145 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:27,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:27,134 INFO L93 Difference]: Finished difference Result 278 states and 386 transitions. [2024-11-23 23:11:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:11:27,135 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-23 23:11:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:27,137 INFO L225 Difference]: With dead ends: 278 [2024-11-23 23:11:27,137 INFO L226 Difference]: Without dead ends: 177 [2024-11-23 23:11:27,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:11:27,138 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 64 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:27,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 449 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:11:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-23 23:11:27,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2024-11-23 23:11:27,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 156 states have internal predecessors, (209), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:11:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 241 transitions. [2024-11-23 23:11:27,151 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 241 transitions. Word has length 105 [2024-11-23 23:11:27,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:27,152 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 241 transitions. [2024-11-23 23:11:27,152 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 241 transitions. [2024-11-23 23:11:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:11:27,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:27,153 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:27,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-23 23:11:27,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:27,354 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:27,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:27,354 INFO L85 PathProgramCache]: Analyzing trace with hash 261825261, now seen corresponding path program 1 times [2024-11-23 23:11:27,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:27,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916419429] [2024-11-23 23:11:27,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:27,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:27,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:27,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:27,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-23 23:11:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:27,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-23 23:11:27,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:27,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:11:28,044 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 20 [2024-11-23 23:11:28,148 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 20 [2024-11-23 23:11:28,242 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 20 [2024-11-23 23:11:28,360 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 20 [2024-11-23 23:11:28,490 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 20 [2024-11-23 23:11:28,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:28,592 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 54 treesize of output 44 [2024-11-23 23:11:28,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:28,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 79 [2024-11-23 23:11:28,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:28,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 155 treesize of output 121 [2024-11-23 23:11:29,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:29,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 179 treesize of output 145 [2024-11-23 23:11:30,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:30,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 205 treesize of output 83 [2024-11-23 23:11:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 24 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:11:30,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:30,857 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:30,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916419429] [2024-11-23 23:11:30,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916419429] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:30,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:30,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-11-23 23:11:30,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937109016] [2024-11-23 23:11:30,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:30,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:11:30,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:30,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:11:30,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:11:30,859 INFO L87 Difference]: Start difference. First operand 174 states and 241 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:32,822 INFO L93 Difference]: Finished difference Result 376 states and 518 transitions. [2024-11-23 23:11:32,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:11:32,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:11:32,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:32,825 INFO L225 Difference]: With dead ends: 376 [2024-11-23 23:11:32,825 INFO L226 Difference]: Without dead ends: 205 [2024-11-23 23:11:32,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:11:32,826 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 183 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:32,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 372 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:11:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-23 23:11:32,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 177. [2024-11-23 23:11:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.3417721518987342) internal successors, (212), 159 states have internal predecessors, (212), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:11:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 244 transitions. [2024-11-23 23:11:32,839 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 244 transitions. Word has length 107 [2024-11-23 23:11:32,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:32,839 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 244 transitions. [2024-11-23 23:11:32,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 244 transitions. [2024-11-23 23:11:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:11:32,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:32,841 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:32,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:33,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:33,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:33,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1427118481, now seen corresponding path program 1 times [2024-11-23 23:11:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092564500] [2024-11-23 23:11:33,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:33,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:33,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:33,044 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:33,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-23 23:11:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:33,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:11:33,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:33,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:33,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:33,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092564500] [2024-11-23 23:11:33,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092564500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:33,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:33,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:11:33,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275931150] [2024-11-23 23:11:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:33,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:11:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:33,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:11:33,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:33,334 INFO L87 Difference]: Start difference. First operand 177 states and 244 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:33,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:33,362 INFO L93 Difference]: Finished difference Result 416 states and 570 transitions. [2024-11-23 23:11:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:11:33,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:11:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:33,364 INFO L225 Difference]: With dead ends: 416 [2024-11-23 23:11:33,364 INFO L226 Difference]: Without dead ends: 242 [2024-11-23 23:11:33,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:11:33,365 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 58 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:33,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:11:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-23 23:11:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 177. [2024-11-23 23:11:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.3291139240506329) internal successors, (210), 159 states have internal predecessors, (210), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:11:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2024-11-23 23:11:33,376 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 107 [2024-11-23 23:11:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:33,376 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2024-11-23 23:11:33,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2024-11-23 23:11:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:11:33,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:33,378 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:33,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-23 23:11:33,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:33,579 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:33,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1387733651, now seen corresponding path program 1 times [2024-11-23 23:11:33,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:33,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473764013] [2024-11-23 23:11:33,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:33,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:33,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:33,582 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:33,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-23 23:11:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:34,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-23 23:11:34,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:34,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:11:34,263 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 37 treesize of output 30 [2024-11-23 23:11:35,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:35,037 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 74 treesize of output 43 [2024-11-23 23:11:35,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:35,340 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 74 treesize of output 43 [2024-11-23 23:11:35,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:35,698 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 74 treesize of output 43 [2024-11-23 23:11:36,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:36,064 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 74 treesize of output 43 [2024-11-23 23:11:36,327 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:36,327 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 86 treesize of output 58 [2024-11-23 23:11:36,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:36,995 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 86 treesize of output 69 [2024-11-23 23:11:37,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:37,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 122 [2024-11-23 23:11:37,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:37,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 156 treesize of output 146 [2024-11-23 23:11:39,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:39,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 171 treesize of output 85 [2024-11-23 23:11:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 56 proven. 96 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 23:11:39,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:40,546 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:40,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473764013] [2024-11-23 23:11:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473764013] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:40,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [28] total 33 [2024-11-23 23:11:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605368515] [2024-11-23 23:11:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:11:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:40,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:11:40,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 23:11:40,548 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:43,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:43,145 INFO L93 Difference]: Finished difference Result 386 states and 526 transitions. [2024-11-23 23:11:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:11:43,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:11:43,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:43,150 INFO L225 Difference]: With dead ends: 386 [2024-11-23 23:11:43,150 INFO L226 Difference]: Without dead ends: 212 [2024-11-23 23:11:43,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332 [2024-11-23 23:11:43,151 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 164 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:43,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 546 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 23:11:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-23 23:11:43,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 180. [2024-11-23 23:11:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 161 states have (on average 1.3229813664596273) internal successors, (213), 162 states have internal predecessors, (213), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:11:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 245 transitions. [2024-11-23 23:11:43,166 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 245 transitions. Word has length 107 [2024-11-23 23:11:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:43,166 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 245 transitions. [2024-11-23 23:11:43,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 245 transitions. [2024-11-23 23:11:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:11:43,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:43,168 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:43,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-23 23:11:43,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:43,369 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:43,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1365078867, now seen corresponding path program 1 times [2024-11-23 23:11:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:43,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162345758] [2024-11-23 23:11:43,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:43,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:43,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:43,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:43,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-23 23:11:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:43,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:11:43,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:43,713 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 72 treesize of output 71 [2024-11-23 23:11:43,926 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 156 treesize of output 128 [2024-11-23 23:11:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:44,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:44,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:44,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162345758] [2024-11-23 23:11:44,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162345758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:44,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:44,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:11:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210267521] [2024-11-23 23:11:44,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:44,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:11:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:44,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:11:44,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:11:44,511 INFO L87 Difference]: Start difference. First operand 180 states and 245 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:46,205 INFO L93 Difference]: Finished difference Result 486 states and 662 transitions. [2024-11-23 23:11:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:11:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:11:46,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:46,207 INFO L225 Difference]: With dead ends: 486 [2024-11-23 23:11:46,207 INFO L226 Difference]: Without dead ends: 309 [2024-11-23 23:11:46,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:11:46,208 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 90 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:46,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 275 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:11:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-23 23:11:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 217. [2024-11-23 23:11:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 185 states have (on average 1.2972972972972974) internal successors, (240), 186 states have internal predecessors, (240), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 23:11:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2024-11-23 23:11:46,230 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 107 [2024-11-23 23:11:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:46,231 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2024-11-23 23:11:46,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2024-11-23 23:11:46,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:11:46,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:46,232 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:46,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:46,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:46,433 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:46,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash 472010962, now seen corresponding path program 1 times [2024-11-23 23:11:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554522610] [2024-11-23 23:11:46,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:46,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:46,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-23 23:11:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:47,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-23 23:11:47,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:47,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:11:47,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:47,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:47,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:47,435 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 27 treesize of output 15 [2024-11-23 23:11:47,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-11-23 23:11:47,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:47,510 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 78 treesize of output 50 [2024-11-23 23:11:47,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:47,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 80 [2024-11-23 23:11:48,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:48,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 130 treesize of output 52 [2024-11-23 23:11:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:11:48,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:11:49,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:49,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554522610] [2024-11-23 23:11:49,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554522610] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:49,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:49,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 22 [2024-11-23 23:11:49,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566868035] [2024-11-23 23:11:49,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:49,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:11:49,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:49,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:11:49,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:11:49,401 INFO L87 Difference]: Start difference. First operand 217 states and 296 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:51,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:51,207 INFO L93 Difference]: Finished difference Result 233 states and 311 transitions. [2024-11-23 23:11:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:11:51,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:11:51,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:51,209 INFO L225 Difference]: With dead ends: 233 [2024-11-23 23:11:51,210 INFO L226 Difference]: Without dead ends: 231 [2024-11-23 23:11:51,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:11:51,210 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 75 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:51,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 514 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:11:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-23 23:11:51,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 184. [2024-11-23 23:11:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 155 states have (on average 1.2838709677419355) internal successors, (199), 155 states have internal predecessors, (199), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 23:11:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 247 transitions. [2024-11-23 23:11:51,229 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 247 transitions. Word has length 109 [2024-11-23 23:11:51,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:51,230 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 247 transitions. [2024-11-23 23:11:51,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:11:51,230 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 247 transitions. [2024-11-23 23:11:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:11:51,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:51,232 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:51,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-23 23:11:51,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:51,433 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:51,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:51,433 INFO L85 PathProgramCache]: Analyzing trace with hash 473858004, now seen corresponding path program 1 times [2024-11-23 23:11:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:11:51,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117152093] [2024-11-23 23:11:51,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:51,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:11:51,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:11:51,436 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:11:51,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-23 23:11:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:52,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:11:52,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:52,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:11:52,865 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 76 treesize of output 34 [2024-11-23 23:11:52,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:52,900 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 82 treesize of output 54 [2024-11-23 23:11:53,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:53,015 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 157 treesize of output 105 [2024-11-23 23:11:54,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:54,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 181 treesize of output 138 [2024-11-23 23:11:59,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:11:59,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 340 treesize of output 124 [2024-11-23 23:11:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:11:59,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:11:59,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:11:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117152093] [2024-11-23 23:11:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117152093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:11:59,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:11:59,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:11:59,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166574463] [2024-11-23 23:11:59,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:11:59,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:11:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:11:59,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:11:59,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:11:59,782 INFO L87 Difference]: Start difference. First operand 184 states and 247 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:12:05,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:12:11,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:12:22,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:12:25,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:12:27,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:12:28,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:12:28,476 INFO L93 Difference]: Finished difference Result 580 states and 767 transitions. [2024-11-23 23:12:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:12:28,477 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:12:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:12:28,479 INFO L225 Difference]: With dead ends: 580 [2024-11-23 23:12:28,480 INFO L226 Difference]: Without dead ends: 440 [2024-11-23 23:12:28,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:12:28,481 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 365 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:12:28,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 606 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2024-11-23 23:12:28,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-23 23:12:28,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 405. [2024-11-23 23:12:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 357 states have (on average 1.2913165266106443) internal successors, (461), 359 states have internal predecessors, (461), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 23:12:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 539 transitions. [2024-11-23 23:12:28,520 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 539 transitions. Word has length 109 [2024-11-23 23:12:28,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:12:28,521 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 539 transitions. [2024-11-23 23:12:28,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:12:28,521 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 539 transitions. [2024-11-23 23:12:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:12:28,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:12:28,522 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:12:28,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:12:28,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:28,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:12:28,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:12:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2046101930, now seen corresponding path program 1 times [2024-11-23 23:12:28,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:12:28,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164588075] [2024-11-23 23:12:28,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:12:28,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:12:28,726 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:12:28,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-23 23:12:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:12:29,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 23:12:29,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:12:29,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:29,718 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 76 treesize of output 34 [2024-11-23 23:12:29,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:29,745 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 82 treesize of output 54 [2024-11-23 23:12:29,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:29,827 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 181 treesize of output 90 [2024-11-23 23:12:29,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:29,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 105 [2024-11-23 23:12:30,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:30,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 265 treesize of output 91 [2024-11-23 23:12:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:12:30,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:12:31,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:12:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164588075] [2024-11-23 23:12:31,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164588075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:12:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [209732237] [2024-11-23 23:12:31,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:12:31,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:12:31,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:12:31,413 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:12:31,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-23 23:12:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:12:32,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:12:32,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:12:33,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:12:34,281 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 64 treesize of output 32 [2024-11-23 23:12:34,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:34,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 48 [2024-11-23 23:12:34,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:34,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 94 [2024-11-23 23:12:34,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:34,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 142 treesize of output 115 [2024-11-23 23:12:35,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:35,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 225 treesize of output 101 [2024-11-23 23:12:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:12:36,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:12:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [209732237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:12:36,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:12:36,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2024-11-23 23:12:36,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432189340] [2024-11-23 23:12:36,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:12:36,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:12:36,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:12:36,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:12:36,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:12:36,249 INFO L87 Difference]: Start difference. First operand 405 states and 539 transitions. Second operand has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:12:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:12:44,871 INFO L93 Difference]: Finished difference Result 791 states and 1046 transitions. [2024-11-23 23:12:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:12:44,872 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 109 [2024-11-23 23:12:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:12:44,875 INFO L225 Difference]: With dead ends: 791 [2024-11-23 23:12:44,875 INFO L226 Difference]: Without dead ends: 440 [2024-11-23 23:12:44,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=232, Invalid=824, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 23:12:44,879 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 757 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:12:44,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 675 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-23 23:12:44,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-23 23:12:44,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 405. [2024-11-23 23:12:44,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 357 states have (on average 1.2857142857142858) internal successors, (459), 359 states have internal predecessors, (459), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-23 23:12:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 537 transitions. [2024-11-23 23:12:44,932 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 537 transitions. Word has length 109 [2024-11-23 23:12:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:12:44,932 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 537 transitions. [2024-11-23 23:12:44,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:12:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 537 transitions. [2024-11-23 23:12:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:12:44,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:12:44,934 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:12:44,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-23 23:12:45,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-23 23:12:45,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:12:45,334 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:12:45,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:12:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1366043560, now seen corresponding path program 1 times [2024-11-23 23:12:45,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:12:45,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279410785] [2024-11-23 23:12:45,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:12:45,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:45,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:12:45,337 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:12:45,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-23 23:12:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:12:45,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 23:12:45,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:12:45,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:12:45,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:45,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:45,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:45,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:12:45,832 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 21 treesize of output 21 [2024-11-23 23:12:45,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:45,858 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 67 treesize of output 45 [2024-11-23 23:12:45,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:45,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 75 [2024-11-23 23:12:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:12:46,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:12:46,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:12:46,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279410785] [2024-11-23 23:12:46,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279410785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:12:46,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:12:46,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:12:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285095105] [2024-11-23 23:12:46,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:12:46,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:12:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:12:46,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:12:46,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:12:46,323 INFO L87 Difference]: Start difference. First operand 405 states and 537 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:12:48,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:12:48,970 INFO L93 Difference]: Finished difference Result 901 states and 1182 transitions. [2024-11-23 23:12:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:12:48,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:12:48,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:12:48,973 INFO L225 Difference]: With dead ends: 901 [2024-11-23 23:12:48,974 INFO L226 Difference]: Without dead ends: 550 [2024-11-23 23:12:48,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:12:48,977 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 170 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:12:48,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 648 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:12:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-23 23:12:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 469. [2024-11-23 23:12:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 418 states have (on average 1.2727272727272727) internal successors, (532), 421 states have internal predecessors, (532), 41 states have call successors, (41), 9 states have call predecessors, (41), 9 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:12:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 614 transitions. [2024-11-23 23:12:49,027 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 614 transitions. Word has length 109 [2024-11-23 23:12:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:12:49,027 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 614 transitions. [2024-11-23 23:12:49,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:12:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 614 transitions. [2024-11-23 23:12:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:12:49,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:12:49,029 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:12:49,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-23 23:12:49,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:49,229 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:12:49,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:12:49,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1626583903, now seen corresponding path program 1 times [2024-11-23 23:12:49,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:12:49,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123269217] [2024-11-23 23:12:49,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:12:49,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:49,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:12:49,232 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:12:49,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-23 23:12:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:12:49,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:12:49,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:12:49,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:12:49,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:12:49,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:12:49,848 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 27 treesize of output 15 [2024-11-23 23:12:49,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:49,863 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 33 treesize of output 35 [2024-11-23 23:12:49,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 58 [2024-11-23 23:12:50,161 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:50,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 87 [2024-11-23 23:12:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 137 proven. 12 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-23 23:12:50,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:12:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:12:50,818 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:12:50,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123269217] [2024-11-23 23:12:50,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123269217] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:12:50,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:12:50,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-23 23:12:50,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246898761] [2024-11-23 23:12:50,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:12:50,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:12:50,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:12:50,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:12:50,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:12:50,820 INFO L87 Difference]: Start difference. First operand 469 states and 614 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:12:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:12:51,578 INFO L93 Difference]: Finished difference Result 1059 states and 1370 transitions. [2024-11-23 23:12:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:12:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:12:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:12:51,589 INFO L225 Difference]: With dead ends: 1059 [2024-11-23 23:12:51,589 INFO L226 Difference]: Without dead ends: 644 [2024-11-23 23:12:51,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:12:51,591 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 104 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:12:51,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 232 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:12:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-23 23:12:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2024-11-23 23:12:51,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 572 states have (on average 1.2412587412587412) internal successors, (710), 577 states have internal predecessors, (710), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:12:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 816 transitions. [2024-11-23 23:12:51,656 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 816 transitions. Word has length 109 [2024-11-23 23:12:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:12:51,656 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 816 transitions. [2024-11-23 23:12:51,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:12:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 816 transitions. [2024-11-23 23:12:51,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:12:51,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:12:51,658 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:12:51,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-23 23:12:51,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:51,859 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:12:51,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:12:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1295001042, now seen corresponding path program 1 times [2024-11-23 23:12:51,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:12:51,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167164689] [2024-11-23 23:12:51,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:12:51,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:12:51,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:12:51,862 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:12:51,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-23 23:12:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:12:52,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 23:12:52,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:12:52,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:12:52,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:52,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:52,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:12:52,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:12:52,376 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 26 [2024-11-23 23:12:52,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:52,402 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 65 treesize of output 49 [2024-11-23 23:12:56,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:56,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 79 [2024-11-23 23:12:56,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:12:56,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 47 [2024-11-23 23:12:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:12:56,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:12:56,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:12:56,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167164689] [2024-11-23 23:12:56,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167164689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:12:56,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:12:56,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:12:56,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918373145] [2024-11-23 23:12:56,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:12:56,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:12:56,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:12:56,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:12:56,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2024-11-23 23:12:56,982 INFO L87 Difference]: Start difference. First operand 640 states and 816 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:13:02,172 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 [0] [2024-11-23 23:13:05,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:13:05,321 INFO L93 Difference]: Finished difference Result 1602 states and 2039 transitions. [2024-11-23 23:13:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:13:05,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:13:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:13:05,326 INFO L225 Difference]: With dead ends: 1602 [2024-11-23 23:13:05,326 INFO L226 Difference]: Without dead ends: 1020 [2024-11-23 23:13:05,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=50, Invalid=159, Unknown=1, NotChecked=0, Total=210 [2024-11-23 23:13:05,328 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 170 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:13:05,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1014 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 573 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2024-11-23 23:13:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-23 23:13:05,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 710. [2024-11-23 23:13:05,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 642 states have (on average 1.2476635514018692) internal successors, (801), 647 states have internal predecessors, (801), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:13:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 907 transitions. [2024-11-23 23:13:05,422 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 907 transitions. Word has length 109 [2024-11-23 23:13:05,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:13:05,423 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 907 transitions. [2024-11-23 23:13:05,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:13:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 907 transitions. [2024-11-23 23:13:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:13:05,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:13:05,425 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:13:05,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-23 23:13:05,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:05,625 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:13:05,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:13:05,626 INFO L85 PathProgramCache]: Analyzing trace with hash 15137364, now seen corresponding path program 1 times [2024-11-23 23:13:05,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:13:05,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514836684] [2024-11-23 23:13:05,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:13:05,626 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 [2024-11-23 23:13:05,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:13:05,628 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:13:05,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-23 23:13:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:13:06,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:13:06,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:13:06,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:13:06,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 23:13:06,115 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 30 treesize of output 14 [2024-11-23 23:13:06,202 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 30 treesize of output 14 [2024-11-23 23:13:06,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-23 23:13:06,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:06,360 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 40 treesize of output 42 [2024-11-23 23:13:06,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:06,428 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 78 treesize of output 65 [2024-11-23 23:13:10,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:10,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 95 [2024-11-23 23:13:10,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:10,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 93 treesize of output 39 [2024-11-23 23:13:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 23:13:11,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:13:11,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:13:11,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514836684] [2024-11-23 23:13:11,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514836684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:13:11,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:13:11,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:13:11,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920881186] [2024-11-23 23:13:11,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:13:11,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:13:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:13:11,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:13:11,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-11-23 23:13:11,871 INFO L87 Difference]: Start difference. First operand 710 states and 907 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:13:19,291 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 [0] [2024-11-23 23:13:21,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:13:25,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:13:30,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:13:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:13:34,941 INFO L93 Difference]: Finished difference Result 1670 states and 2126 transitions. [2024-11-23 23:13:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:13:34,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:13:34,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:13:34,946 INFO L225 Difference]: With dead ends: 1670 [2024-11-23 23:13:34,946 INFO L226 Difference]: Without dead ends: 1018 [2024-11-23 23:13:34,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=42, Invalid=67, Unknown=1, NotChecked=0, Total=110 [2024-11-23 23:13:34,948 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 243 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:13:34,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 451 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 22.8s Time] [2024-11-23 23:13:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-23 23:13:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 772. [2024-11-23 23:13:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 704 states have (on average 1.2457386363636365) internal successors, (877), 709 states have internal predecessors, (877), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:13:35,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 983 transitions. [2024-11-23 23:13:35,033 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 983 transitions. Word has length 109 [2024-11-23 23:13:35,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:13:35,033 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 983 transitions. [2024-11-23 23:13:35,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:13:35,034 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 983 transitions. [2024-11-23 23:13:35,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:13:35,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:13:35,035 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:13:35,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-23 23:13:35,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:35,236 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:13:35,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:13:35,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1435549652, now seen corresponding path program 1 times [2024-11-23 23:13:35,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:13:35,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551464812] [2024-11-23 23:13:35,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:13:35,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:35,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:13:35,238 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:13:35,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-23 23:13:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:13:35,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 23:13:35,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:13:35,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:13:35,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 23:13:35,723 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 30 treesize of output 14 [2024-11-23 23:13:35,817 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 30 treesize of output 14 [2024-11-23 23:13:35,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-23 23:13:35,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:35,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2024-11-23 23:13:36,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:36,022 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 89 treesize of output 46 [2024-11-23 23:13:36,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:36,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 70 [2024-11-23 23:13:36,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:36,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 32 [2024-11-23 23:13:36,330 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 23:13:36,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:13:36,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:13:36,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551464812] [2024-11-23 23:13:36,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551464812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:13:36,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:13:36,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:13:36,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022496695] [2024-11-23 23:13:36,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:13:36,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:13:36,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:13:36,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:13:36,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:13:36,332 INFO L87 Difference]: Start difference. First operand 772 states and 983 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:13:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:13:40,057 INFO L93 Difference]: Finished difference Result 1780 states and 2259 transitions. [2024-11-23 23:13:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:13:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:13:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:13:40,062 INFO L225 Difference]: With dead ends: 1780 [2024-11-23 23:13:40,062 INFO L226 Difference]: Without dead ends: 1066 [2024-11-23 23:13:40,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:13:40,064 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 225 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:13:40,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-23 23:13:40,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-11-23 23:13:40,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 798. [2024-11-23 23:13:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 730 states have (on average 1.236986301369863) internal successors, (903), 735 states have internal predecessors, (903), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:13:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1009 transitions. [2024-11-23 23:13:40,156 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1009 transitions. Word has length 109 [2024-11-23 23:13:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:13:40,157 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1009 transitions. [2024-11-23 23:13:40,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:13:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1009 transitions. [2024-11-23 23:13:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:13:40,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:13:40,159 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:13:40,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-23 23:13:40,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:40,360 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:13:40,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:13:40,360 INFO L85 PathProgramCache]: Analyzing trace with hash 155685974, now seen corresponding path program 1 times [2024-11-23 23:13:40,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:13:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852584107] [2024-11-23 23:13:40,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:13:40,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:13:40,362 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:13:40,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-23 23:13:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:13:40,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 23:13:40,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:13:40,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 23:13:40,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:40,844 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 65 treesize of output 34 [2024-11-23 23:13:40,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:40,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 61 [2024-11-23 23:13:41,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:41,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 23 [2024-11-23 23:13:41,215 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:13:41,215 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:13:41,215 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:13:41,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852584107] [2024-11-23 23:13:41,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852584107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:13:41,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:13:41,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:13:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112594653] [2024-11-23 23:13:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:13:41,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:13:41,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:13:41,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:13:41,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:13:41,216 INFO L87 Difference]: Start difference. First operand 798 states and 1009 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:13:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:13:44,866 INFO L93 Difference]: Finished difference Result 1908 states and 2417 transitions. [2024-11-23 23:13:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:13:44,867 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:13:44,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:13:44,869 INFO L225 Difference]: With dead ends: 1908 [2024-11-23 23:13:44,870 INFO L226 Difference]: Without dead ends: 1168 [2024-11-23 23:13:44,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:13:44,871 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 195 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:13:44,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1368 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-23 23:13:44,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-23 23:13:44,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 806. [2024-11-23 23:13:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 738 states have (on average 1.2344173441734418) internal successors, (911), 743 states have internal predecessors, (911), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:13:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1017 transitions. [2024-11-23 23:13:44,972 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1017 transitions. Word has length 109 [2024-11-23 23:13:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:13:44,972 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1017 transitions. [2024-11-23 23:13:44,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:13:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1017 transitions. [2024-11-23 23:13:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:13:44,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:13:44,975 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:13:44,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-23 23:13:45,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:45,176 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:13:45,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:13:45,176 INFO L85 PathProgramCache]: Analyzing trace with hash -555501294, now seen corresponding path program 1 times [2024-11-23 23:13:45,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:13:45,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168220417] [2024-11-23 23:13:45,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:13:45,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:45,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:13:45,181 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:13:45,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-23 23:13:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:13:45,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:13:45,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:13:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:13:45,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:13:45,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:13:45,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168220417] [2024-11-23 23:13:45,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168220417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:13:45,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:13:45,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:13:45,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427499190] [2024-11-23 23:13:45,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:13:45,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:13:45,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:13:45,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:13:45,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:13:45,567 INFO L87 Difference]: Start difference. First operand 806 states and 1017 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:13:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:13:45,662 INFO L93 Difference]: Finished difference Result 1562 states and 1971 transitions. [2024-11-23 23:13:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:13:45,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:13:45,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:13:45,665 INFO L225 Difference]: With dead ends: 1562 [2024-11-23 23:13:45,666 INFO L226 Difference]: Without dead ends: 806 [2024-11-23 23:13:45,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:13:45,667 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 340 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 [2024-11-23 23:13:45,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:13:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-23 23:13:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 806. [2024-11-23 23:13:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 738 states have (on average 1.2317073170731707) internal successors, (909), 743 states have internal predecessors, (909), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:13:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1015 transitions. [2024-11-23 23:13:45,756 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1015 transitions. Word has length 109 [2024-11-23 23:13:45,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:13:45,756 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1015 transitions. [2024-11-23 23:13:45,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:13:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1015 transitions. [2024-11-23 23:13:45,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:13:45,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:13:45,758 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:13:45,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-23 23:13:45,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:45,959 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:13:45,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:13:45,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1175156526, now seen corresponding path program 1 times [2024-11-23 23:13:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:13:45,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751823274] [2024-11-23 23:13:45,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:13:45,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:13:45,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:13:45,961 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:13:45,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-23 23:13:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:13:46,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-23 23:13:46,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:13:46,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:13:46,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:13:46,568 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 31 treesize of output 15 [2024-11-23 23:13:46,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:13:46,701 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 27 treesize of output 15 [2024-11-23 23:13:46,714 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 33 treesize of output 26 [2024-11-23 23:13:46,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 50 [2024-11-23 23:13:48,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:48,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 83 [2024-11-23 23:13:53,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:13:53,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 112 treesize of output 40 [2024-11-23 23:13:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:13:54,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:05,587 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:05,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751823274] [2024-11-23 23:14:05,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751823274] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:05,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:14:05,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2024-11-23 23:14:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832623344] [2024-11-23 23:14:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:05,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:14:05,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:05,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:14:05,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=364, Unknown=1, NotChecked=0, Total=462 [2024-11-23 23:14:05,589 INFO L87 Difference]: Start difference. First operand 806 states and 1015 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:14,215 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 [] [2024-11-23 23:14:18,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:14:22,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:14:26,928 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 [] [2024-11-23 23:14:34,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:34,186 INFO L93 Difference]: Finished difference Result 1796 states and 2249 transitions. [2024-11-23 23:14:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:14:34,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:14:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:34,197 INFO L225 Difference]: With dead ends: 1796 [2024-11-23 23:14:34,197 INFO L226 Difference]: Without dead ends: 1048 [2024-11-23 23:14:34,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=158, Invalid=543, Unknown=1, NotChecked=0, Total=702 [2024-11-23 23:14:34,202 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 174 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:34,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 619 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 405 Invalid, 4 Unknown, 0 Unchecked, 26.3s Time] [2024-11-23 23:14:34,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-23 23:14:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 864. [2024-11-23 23:14:34,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 796 states have (on average 1.2248743718592965) internal successors, (975), 801 states have internal predecessors, (975), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 23:14:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1081 transitions. [2024-11-23 23:14:34,302 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1081 transitions. Word has length 110 [2024-11-23 23:14:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:34,303 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1081 transitions. [2024-11-23 23:14:34,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1081 transitions. [2024-11-23 23:14:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:14:34,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:34,305 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:34,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-23 23:14:34,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:34,506 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:34,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:34,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1256759457, now seen corresponding path program 1 times [2024-11-23 23:14:34,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:14:34,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332944348] [2024-11-23 23:14:34,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:34,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:14:34,510 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:14:34,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-23 23:14:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:34,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 23:14:34,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:34,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:14:35,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:14:35,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:14:35,261 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 27 treesize of output 15 [2024-11-23 23:14:35,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:35,283 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 33 treesize of output 35 [2024-11-23 23:14:35,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 58 [2024-11-23 23:14:35,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:35,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 69 [2024-11-23 23:14:35,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:35,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 28 [2024-11-23 23:14:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 137 proven. 12 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-23 23:14:36,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:36,379 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:36,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332944348] [2024-11-23 23:14:36,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332944348] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:36,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:14:36,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-23 23:14:36,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794584745] [2024-11-23 23:14:36,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:36,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:14:36,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:36,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:14:36,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:14:36,381 INFO L87 Difference]: Start difference. First operand 864 states and 1081 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:37,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:37,165 INFO L93 Difference]: Finished difference Result 1664 states and 2074 transitions. [2024-11-23 23:14:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:14:37,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:14:37,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:37,169 INFO L225 Difference]: With dead ends: 1664 [2024-11-23 23:14:37,169 INFO L226 Difference]: Without dead ends: 858 [2024-11-23 23:14:37,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:14:37,170 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 82 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:37,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 340 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:14:37,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-11-23 23:14:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 765. [2024-11-23 23:14:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 711 states have (on average 1.2222222222222223) internal successors, (869), 714 states have internal predecessors, (869), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:14:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 951 transitions. [2024-11-23 23:14:37,249 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 951 transitions. Word has length 110 [2024-11-23 23:14:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:37,250 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 951 transitions. [2024-11-23 23:14:37,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 951 transitions. [2024-11-23 23:14:37,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:14:37,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:37,253 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:37,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-23 23:14:37,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:37,454 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:37,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash 996219114, now seen corresponding path program 1 times [2024-11-23 23:14:37,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:14:37,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277774046] [2024-11-23 23:14:37,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:37,455 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 [2024-11-23 23:14:37,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:14:37,458 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:14:37,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-23 23:14:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:37,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-23 23:14:37,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:37,957 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 76 treesize of output 75 [2024-11-23 23:14:38,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 103 [2024-11-23 23:14:38,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:14:38,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:14:38,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:38,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:14:39,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:39,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:14:39,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:39,542 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 37 treesize of output 28 [2024-11-23 23:14:39,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:39,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-23 23:14:39,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:39,710 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 91 treesize of output 42 [2024-11-23 23:14:40,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:40,019 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 58 treesize of output 42 [2024-11-23 23:14:40,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:40,282 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 49 treesize of output 19 [2024-11-23 23:14:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:14:40,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:40,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:40,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277774046] [2024-11-23 23:14:40,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277774046] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:40,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:14:40,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-23 23:14:40,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114383967] [2024-11-23 23:14:40,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:40,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:14:40,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:40,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:14:40,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:14:40,781 INFO L87 Difference]: Start difference. First operand 765 states and 951 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:42,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:42,169 INFO L93 Difference]: Finished difference Result 1633 states and 2015 transitions. [2024-11-23 23:14:42,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:14:42,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:14:42,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:42,173 INFO L225 Difference]: With dead ends: 1633 [2024-11-23 23:14:42,174 INFO L226 Difference]: Without dead ends: 926 [2024-11-23 23:14:42,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:14:42,175 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 25 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:42,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 375 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:14:42,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-23 23:14:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 872. [2024-11-23 23:14:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 818 states have (on average 1.206601466992665) internal successors, (987), 821 states have internal predecessors, (987), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:14:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1069 transitions. [2024-11-23 23:14:42,247 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1069 transitions. Word has length 110 [2024-11-23 23:14:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:42,248 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 1069 transitions. [2024-11-23 23:14:42,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1069 transitions. [2024-11-23 23:14:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:14:42,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:42,249 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:42,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-23 23:14:42,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:42,450 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:42,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:42,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1583025128, now seen corresponding path program 1 times [2024-11-23 23:14:42,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:14:42,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243825463] [2024-11-23 23:14:42,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:42,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:42,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:14:42,453 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:14:42,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-23 23:14:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:42,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:14:42,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:42,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:14:42,895 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 21 treesize of output 21 [2024-11-23 23:14:43,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:43,011 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 38 treesize of output 14 [2024-11-23 23:14:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:43,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:14:43,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:43,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243825463] [2024-11-23 23:14:43,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243825463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:43,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:43,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:14:43,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81083997] [2024-11-23 23:14:43,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:43,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:14:43,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:43,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:14:43,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:14:43,162 INFO L87 Difference]: Start difference. First operand 872 states and 1069 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:45,501 INFO L93 Difference]: Finished difference Result 1844 states and 2265 transitions. [2024-11-23 23:14:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:14:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:14:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:45,505 INFO L225 Difference]: With dead ends: 1844 [2024-11-23 23:14:45,505 INFO L226 Difference]: Without dead ends: 1030 [2024-11-23 23:14:45,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:14:45,506 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 75 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:45,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 992 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 23:14:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-23 23:14:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 884. [2024-11-23 23:14:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 830 states have (on average 1.2036144578313253) internal successors, (999), 833 states have internal predecessors, (999), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:14:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1081 transitions. [2024-11-23 23:14:45,598 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1081 transitions. Word has length 110 [2024-11-23 23:14:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:45,598 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1081 transitions. [2024-11-23 23:14:45,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1081 transitions. [2024-11-23 23:14:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:14:45,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:45,600 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:45,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-23 23:14:45,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:45,801 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:45,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash 862205608, now seen corresponding path program 1 times [2024-11-23 23:14:45,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:14:45,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637721520] [2024-11-23 23:14:45,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:45,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:45,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:14:45,803 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:14:45,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-23 23:14:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:46,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:14:46,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:46,151 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 13 treesize of output 9 [2024-11-23 23:14:46,224 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 19 treesize of output 7 [2024-11-23 23:14:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:46,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:14:46,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:46,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637721520] [2024-11-23 23:14:46,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637721520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:46,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:46,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:14:46,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407674512] [2024-11-23 23:14:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:46,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:14:46,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:46,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:14:46,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:14:46,379 INFO L87 Difference]: Start difference. First operand 884 states and 1081 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:48,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:48,642 INFO L93 Difference]: Finished difference Result 1773 states and 2166 transitions. [2024-11-23 23:14:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:14:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:14:48,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:48,647 INFO L225 Difference]: With dead ends: 1773 [2024-11-23 23:14:48,647 INFO L226 Difference]: Without dead ends: 947 [2024-11-23 23:14:48,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:14:48,648 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 90 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:48,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 598 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 23:14:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-23 23:14:48,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 884. [2024-11-23 23:14:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 830 states have (on average 1.2036144578313253) internal successors, (999), 833 states have internal predecessors, (999), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:14:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1081 transitions. [2024-11-23 23:14:48,731 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1081 transitions. Word has length 110 [2024-11-23 23:14:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:48,732 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1081 transitions. [2024-11-23 23:14:48,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1081 transitions. [2024-11-23 23:14:48,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:14:48,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:48,733 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:48,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-23 23:14:48,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:48,934 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:48,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:48,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1449011622, now seen corresponding path program 1 times [2024-11-23 23:14:48,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:14:48,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691436517] [2024-11-23 23:14:48,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:48,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:48,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:14:48,937 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:14:48,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-23 23:14:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:49,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 23:14:49,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:49,352 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 78 treesize of output 77 [2024-11-23 23:14:49,503 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 105 treesize of output 95 [2024-11-23 23:14:49,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:14:49,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:14:50,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:14:50,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:14:50,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-23 23:14:50,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-11-23 23:14:50,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:50,569 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 73 treesize of output 60 [2024-11-23 23:14:51,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:51,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 75 [2024-11-23 23:14:51,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:51,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 34 [2024-11-23 23:14:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:14:51,952 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:52,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691436517] [2024-11-23 23:14:52,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691436517] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:52,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:14:52,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-23 23:14:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803816718] [2024-11-23 23:14:52,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:52,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:14:52,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:52,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:14:52,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:14:52,368 INFO L87 Difference]: Start difference. First operand 884 states and 1081 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:53,096 INFO L93 Difference]: Finished difference Result 1761 states and 2148 transitions. [2024-11-23 23:14:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:14:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:14:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:53,099 INFO L225 Difference]: With dead ends: 1761 [2024-11-23 23:14:53,100 INFO L226 Difference]: Without dead ends: 935 [2024-11-23 23:14:53,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:14:53,101 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 54 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:53,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 322 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:14:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-23 23:14:53,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 881. [2024-11-23 23:14:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 827 states have (on average 1.2007255139056832) internal successors, (993), 830 states have internal predecessors, (993), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:14:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1075 transitions. [2024-11-23 23:14:53,176 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1075 transitions. Word has length 110 [2024-11-23 23:14:53,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:53,177 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1075 transitions. [2024-11-23 23:14:53,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:14:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1075 transitions. [2024-11-23 23:14:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:14:53,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:53,178 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:53,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-23 23:14:53,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:53,379 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:53,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:53,379 INFO L85 PathProgramCache]: Analyzing trace with hash -138541150, now seen corresponding path program 1 times [2024-11-23 23:14:53,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:14:53,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768868048] [2024-11-23 23:14:53,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:53,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:14:53,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:14:53,382 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:14:53,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-23 23:14:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:53,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-23 23:14:53,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:53,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:14:54,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:14:54,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:54,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:14:54,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:54,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:14:54,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:54,723 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 37 treesize of output 28 [2024-11-23 23:14:54,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:54,846 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 48 treesize of output 44 [2024-11-23 23:14:55,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 47 [2024-11-23 23:14:55,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:55,322 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 83 treesize of output 55 [2024-11-23 23:14:55,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:14:55,711 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 95 treesize of output 47 [2024-11-23 23:14:56,028 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:14:56,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:14:57,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:14:57,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768868048] [2024-11-23 23:14:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768868048] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:14:57,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 25 [2024-11-23 23:14:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736180359] [2024-11-23 23:14:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:57,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:14:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:14:57,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:14:57,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:14:57,087 INFO L87 Difference]: Start difference. First operand 881 states and 1075 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:15:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:02,682 INFO L93 Difference]: Finished difference Result 2025 states and 2467 transitions. [2024-11-23 23:15:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:15:02,683 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:15:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:02,686 INFO L225 Difference]: With dead ends: 2025 [2024-11-23 23:15:02,686 INFO L226 Difference]: Without dead ends: 1202 [2024-11-23 23:15:02,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:15:02,687 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 213 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:02,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1160 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:15:02,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2024-11-23 23:15:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 893. [2024-11-23 23:15:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 839 states have (on average 1.197854588796186) internal successors, (1005), 842 states have internal predecessors, (1005), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:15:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1087 transitions. [2024-11-23 23:15:02,749 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1087 transitions. Word has length 110 [2024-11-23 23:15:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:02,750 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1087 transitions. [2024-11-23 23:15:02,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:15:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1087 transitions. [2024-11-23 23:15:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:15:02,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:02,752 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:02,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-23 23:15:02,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:15:02,956 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:02,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:02,956 INFO L85 PathProgramCache]: Analyzing trace with hash -886847695, now seen corresponding path program 1 times [2024-11-23 23:15:02,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:15:02,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823080355] [2024-11-23 23:15:02,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:15:02,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:15:02,958 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:15:02,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-23 23:15:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:03,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 23:15:03,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:03,434 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 77 treesize of output 76 [2024-11-23 23:15:03,614 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 114 treesize of output 100 [2024-11-23 23:15:03,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:15:04,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:15:04,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:04,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:15:04,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:04,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:15:04,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:04,913 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 37 treesize of output 28 [2024-11-23 23:15:05,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:05,100 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 48 treesize of output 44 [2024-11-23 23:15:05,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:05,242 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 98 treesize of output 58 [2024-11-23 23:15:05,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:05,409 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 71 treesize of output 29 [2024-11-23 23:15:05,633 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:15:05,633 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:15:06,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 20 [2024-11-23 23:15:06,702 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:15:06,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823080355] [2024-11-23 23:15:06,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823080355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:15:06,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1351798357] [2024-11-23 23:15:06,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:06,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:15:06,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:15:06,705 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:15:06,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-23 23:15:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:08,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-23 23:15:08,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:08,087 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 49 treesize of output 48 [2024-11-23 23:15:08,597 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 92 treesize of output 70 [2024-11-23 23:15:09,154 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 12 treesize of output 8 [2024-11-23 23:15:10,281 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 33 treesize of output 17 [2024-11-23 23:15:10,766 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 33 treesize of output 17 [2024-11-23 23:15:11,254 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 33 treesize of output 17 [2024-11-23 23:15:11,833 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 33 treesize of output 17 [2024-11-23 23:15:12,147 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 40 treesize of output 31 [2024-11-23 23:15:12,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 39 [2024-11-23 23:15:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 161 proven. 18 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-23 23:15:12,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:15:13,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1351798357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:15:13,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:15:13,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-23 23:15:13,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466458238] [2024-11-23 23:15:13,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:15:13,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:15:13,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:15:13,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:15:13,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 23:15:13,455 INFO L87 Difference]: Start difference. First operand 893 states and 1087 transitions. Second operand has 24 states, 22 states have (on average 4.545454545454546) internal successors, (100), 22 states have internal predecessors, (100), 7 states have call successors, (24), 5 states have call predecessors, (24), 7 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-23 23:15:38,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:39,951 INFO L93 Difference]: Finished difference Result 2323 states and 2799 transitions. [2024-11-23 23:15:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:15:39,952 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.545454545454546) internal successors, (100), 22 states have internal predecessors, (100), 7 states have call successors, (24), 5 states have call predecessors, (24), 7 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 110 [2024-11-23 23:15:39,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:39,956 INFO L225 Difference]: With dead ends: 2323 [2024-11-23 23:15:39,956 INFO L226 Difference]: Without dead ends: 1488 [2024-11-23 23:15:39,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 350 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2024-11-23 23:15:39,958 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 384 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:39,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 868 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2024-11-23 23:15:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-11-23 23:15:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 911. [2024-11-23 23:15:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 856 states have (on average 1.2009345794392523) internal successors, (1028), 859 states have internal predecessors, (1028), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:15:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1110 transitions. [2024-11-23 23:15:40,033 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1110 transitions. Word has length 110 [2024-11-23 23:15:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:40,033 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1110 transitions. [2024-11-23 23:15:40,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.545454545454546) internal successors, (100), 22 states have internal predecessors, (100), 7 states have call successors, (24), 5 states have call predecessors, (24), 7 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-23 23:15:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1110 transitions. [2024-11-23 23:15:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:15:40,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:40,034 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:40,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-23 23:15:40,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-23 23:15:40,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:15:40,435 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:40,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:40,436 INFO L85 PathProgramCache]: Analyzing trace with hash -667992977, now seen corresponding path program 1 times [2024-11-23 23:15:40,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:15:40,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878503871] [2024-11-23 23:15:40,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:40,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:15:40,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:15:40,438 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:15:40,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-23 23:15:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:41,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-23 23:15:41,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:41,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:15:41,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:15:41,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:15:41,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:15:41,389 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 27 treesize of output 15 [2024-11-23 23:15:41,472 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 38 treesize of output 31 [2024-11-23 23:15:41,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:41,557 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 83 treesize of output 55 [2024-11-23 23:15:41,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:41,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 61 [2024-11-23 23:15:42,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:42,113 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 85 treesize of output 37 [2024-11-23 23:15:42,386 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:15:42,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:15:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:15:43,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:15:43,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878503871] [2024-11-23 23:15:43,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878503871] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:15:43,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:15:43,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 19 [2024-11-23 23:15:43,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273541464] [2024-11-23 23:15:43,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:43,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:15:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:15:43,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:15:43,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:15:43,053 INFO L87 Difference]: Start difference. First operand 911 states and 1110 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:15:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:46,555 INFO L93 Difference]: Finished difference Result 1989 states and 2421 transitions. [2024-11-23 23:15:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:15:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:15:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:46,559 INFO L225 Difference]: With dead ends: 1989 [2024-11-23 23:15:46,559 INFO L226 Difference]: Without dead ends: 1154 [2024-11-23 23:15:46,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:15:46,561 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 63 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:46,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 955 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-23 23:15:46,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-11-23 23:15:46,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 896. [2024-11-23 23:15:46,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 841 states have (on average 1.2045184304399525) internal successors, (1013), 844 states have internal predecessors, (1013), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:15:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1095 transitions. [2024-11-23 23:15:46,656 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1095 transitions. Word has length 110 [2024-11-23 23:15:46,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:46,657 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1095 transitions. [2024-11-23 23:15:46,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:15:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1095 transitions. [2024-11-23 23:15:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:15:46,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:46,658 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:46,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2024-11-23 23:15:46,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:15:46,859 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:46,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:46,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1564405514, now seen corresponding path program 1 times [2024-11-23 23:15:46,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:15:46,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541813437] [2024-11-23 23:15:46,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:15:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:15:46,862 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:15:46,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-23 23:15:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:47,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-23 23:15:47,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:47,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:15:47,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:15:47,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:47,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:15:48,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:48,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:15:48,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:48,353 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 37 treesize of output 28 [2024-11-23 23:15:48,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:48,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-23 23:15:48,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 73 [2024-11-23 23:15:50,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:50,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 135 treesize of output 134 [2024-11-23 23:15:56,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:15:56,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 164 treesize of output 62 [2024-11-23 23:15:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:15:57,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:16:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:16:07,422 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:16:07,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541813437] [2024-11-23 23:16:07,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541813437] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:16:07,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:16:07,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2024-11-23 23:16:07,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062110149] [2024-11-23 23:16:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:16:07,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:16:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:16:07,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:16:07,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=398, Unknown=1, NotChecked=0, Total=506 [2024-11-23 23:16:07,423 INFO L87 Difference]: Start difference. First operand 896 states and 1095 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:16:15,810 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 [] [2024-11-23 23:16:22,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:16:22,104 INFO L93 Difference]: Finished difference Result 1782 states and 2173 transitions. [2024-11-23 23:16:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:16:22,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-23 23:16:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:16:22,110 INFO L225 Difference]: With dead ends: 1782 [2024-11-23 23:16:22,110 INFO L226 Difference]: Without dead ends: 962 [2024-11-23 23:16:22,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=168, Invalid=587, Unknown=1, NotChecked=0, Total=756 [2024-11-23 23:16:22,111 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 160 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:16:22,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 566 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2024-11-23 23:16:22,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-23 23:16:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 904. [2024-11-23 23:16:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 849 states have (on average 1.2025912838633688) internal successors, (1021), 852 states have internal predecessors, (1021), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:16:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1103 transitions. [2024-11-23 23:16:22,172 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1103 transitions. Word has length 111 [2024-11-23 23:16:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:16:22,172 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1103 transitions. [2024-11-23 23:16:22,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:16:22,172 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1103 transitions. [2024-11-23 23:16:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:16:22,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:16:22,174 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:16:22,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-23 23:16:22,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:16:22,374 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:16:22,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:16:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1173954546, now seen corresponding path program 1 times [2024-11-23 23:16:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:16:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724454785] [2024-11-23 23:16:22,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:16:22,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:16:22,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:16:22,377 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:16:22,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-23 23:16:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:16:22,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-23 23:16:22,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:16:23,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:16:23,904 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 74 treesize of output 32 [2024-11-23 23:16:23,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:16:23,953 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 80 treesize of output 52 [2024-11-23 23:16:24,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:16:24,093 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 153 treesize of output 92 [2024-11-23 23:16:25,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:16:25,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 162 treesize of output 122 [2024-11-23 23:16:31,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:16:31,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 321 treesize of output 117 [2024-11-23 23:16:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:16:32,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:16:32,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:16:32,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724454785] [2024-11-23 23:16:32,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724454785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:16:32,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:16:32,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:16:32,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778734382] [2024-11-23 23:16:32,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:16:32,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:16:32,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:16:32,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:16:32,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:16:32,291 INFO L87 Difference]: Start difference. First operand 904 states and 1103 transitions. Second operand has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:16:37,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:41,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:43,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:53,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:57,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:02,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:07,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:09,288 INFO L93 Difference]: Finished difference Result 2286 states and 2773 transitions. [2024-11-23 23:17:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 23:17:09,289 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-23 23:17:09,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:09,292 INFO L225 Difference]: With dead ends: 2286 [2024-11-23 23:17:09,292 INFO L226 Difference]: Without dead ends: 1458 [2024-11-23 23:17:09,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:17:09,294 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 488 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 65 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:09,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 750 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1071 Invalid, 3 Unknown, 0 Unchecked, 29.6s Time] [2024-11-23 23:17:09,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2024-11-23 23:17:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1333. [2024-11-23 23:17:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1256 states have (on average 1.2038216560509554) internal successors, (1512), 1261 states have internal predecessors, (1512), 56 states have call successors, (56), 20 states have call predecessors, (56), 20 states have return successors, (56), 51 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 23:17:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1624 transitions. [2024-11-23 23:17:09,391 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1624 transitions. Word has length 111 [2024-11-23 23:17:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:09,391 INFO L471 AbstractCegarLoop]: Abstraction has 1333 states and 1624 transitions. [2024-11-23 23:17:09,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:17:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1624 transitions. [2024-11-23 23:17:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:17:09,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:09,393 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:09,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-23 23:17:09,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:09,594 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:09,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:09,594 INFO L85 PathProgramCache]: Analyzing trace with hash 601052816, now seen corresponding path program 1 times [2024-11-23 23:17:09,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:17:09,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493230669] [2024-11-23 23:17:09,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:09,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:09,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:17:09,597 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:17:09,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-23 23:17:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:10,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 23:17:10,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:10,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:17:11,011 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 74 treesize of output 32 [2024-11-23 23:17:11,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:11,046 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 80 treesize of output 52 [2024-11-23 23:17:11,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:11,160 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 176 treesize of output 109 [2024-11-23 23:17:11,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:11,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 130 [2024-11-23 23:17:12,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:12,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 290 treesize of output 98 [2024-11-23 23:17:12,878 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:17:12,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:17:13,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:17:13,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493230669] [2024-11-23 23:17:13,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493230669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:13,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2101664768] [2024-11-23 23:17:13,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:13,333 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:17:13,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:17:13,335 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:17:13,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-23 23:17:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:14,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-23 23:17:14,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:15,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:17:16,979 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 62 treesize of output 30 [2024-11-23 23:17:17,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:17,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 46 [2024-11-23 23:17:17,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:17,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 85 [2024-11-23 23:17:21,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:21,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 137 treesize of output 103 [2024-11-23 23:17:30,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:30,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 220 treesize of output 96 [2024-11-23 23:17:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:17:30,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:17:31,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2101664768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:31,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:17:31,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2024-11-23 23:17:31,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115368635] [2024-11-23 23:17:31,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:17:31,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 23:17:31,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:17:31,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 23:17:31,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=658, Unknown=3, NotChecked=0, Total=812 [2024-11-23 23:17:31,098 INFO L87 Difference]: Start difference. First operand 1333 states and 1624 transitions. Second operand has 26 states, 24 states have (on average 4.416666666666667) internal successors, (106), 23 states have internal predecessors, (106), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:17:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:47,503 INFO L93 Difference]: Finished difference Result 2693 states and 3269 transitions. [2024-11-23 23:17:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 23:17:47,504 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.416666666666667) internal successors, (106), 23 states have internal predecessors, (106), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 111 [2024-11-23 23:17:47,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:47,508 INFO L225 Difference]: With dead ends: 2693 [2024-11-23 23:17:47,508 INFO L226 Difference]: Without dead ends: 1456 [2024-11-23 23:17:47,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=520, Invalid=1927, Unknown=3, NotChecked=0, Total=2450 [2024-11-23 23:17:47,511 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 529 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:47,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1244 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2024-11-23 23:17:47,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-11-23 23:17:47,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1355. [2024-11-23 23:17:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1278 states have (on average 1.2010954616588418) internal successors, (1535), 1283 states have internal predecessors, (1535), 56 states have call successors, (56), 20 states have call predecessors, (56), 20 states have return successors, (56), 51 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 23:17:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1647 transitions. [2024-11-23 23:17:47,607 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1647 transitions. Word has length 111 [2024-11-23 23:17:47,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:47,607 INFO L471 AbstractCegarLoop]: Abstraction has 1355 states and 1647 transitions. [2024-11-23 23:17:47,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.416666666666667) internal successors, (106), 23 states have internal predecessors, (106), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:17:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1647 transitions. [2024-11-23 23:17:47,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:17:47,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:47,609 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:47,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-23 23:17:47,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-23 23:17:48,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:17:48,010 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:48,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash -514423024, now seen corresponding path program 1 times [2024-11-23 23:17:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:17:48,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951563900] [2024-11-23 23:17:48,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:48,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:48,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:17:48,013 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:17:48,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-23 23:17:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:48,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:17:48,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:17:48,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:17:48,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:17:48,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951563900] [2024-11-23 23:17:48,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951563900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:48,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:48,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:17:48,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789851943] [2024-11-23 23:17:48,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:48,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:17:48,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:17:48,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:17:48,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:17:48,559 INFO L87 Difference]: Start difference. First operand 1355 states and 1647 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:17:48,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:48,946 INFO L93 Difference]: Finished difference Result 2249 states and 2729 transitions. [2024-11-23 23:17:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:17:48,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-23 23:17:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:48,949 INFO L225 Difference]: With dead ends: 2249 [2024-11-23 23:17:48,949 INFO L226 Difference]: Without dead ends: 968 [2024-11-23 23:17:48,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:17:48,951 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 1 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:48,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 487 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:17:48,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-23 23:17:49,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 956. [2024-11-23 23:17:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 899 states have (on average 1.1968854282536152) internal successors, (1076), 902 states have internal predecessors, (1076), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:17:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1158 transitions. [2024-11-23 23:17:49,030 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1158 transitions. Word has length 111 [2024-11-23 23:17:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:49,030 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1158 transitions. [2024-11-23 23:17:49,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:17:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1158 transitions. [2024-11-23 23:17:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:17:49,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:49,031 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:49,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-23 23:17:49,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:49,232 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:49,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:49,232 INFO L85 PathProgramCache]: Analyzing trace with hash 323251460, now seen corresponding path program 1 times [2024-11-23 23:17:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:17:49,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543655812] [2024-11-23 23:17:49,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:49,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:49,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:17:49,235 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:17:49,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-23 23:17:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:49,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:17:49,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:49,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:17:49,792 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 24 treesize of output 24 [2024-11-23 23:17:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:17:50,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:17:50,027 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:17:50,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543655812] [2024-11-23 23:17:50,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543655812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:50,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:50,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:17:50,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229656217] [2024-11-23 23:17:50,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:50,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:17:50,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:17:50,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:17:50,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:17:50,029 INFO L87 Difference]: Start difference. First operand 956 states and 1158 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:17:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:51,427 INFO L93 Difference]: Finished difference Result 1994 states and 2413 transitions. [2024-11-23 23:17:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:17:51,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-23 23:17:51,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:51,432 INFO L225 Difference]: With dead ends: 1994 [2024-11-23 23:17:51,432 INFO L226 Difference]: Without dead ends: 1118 [2024-11-23 23:17:51,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:17:51,438 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 35 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:51,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 801 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:17:51,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-23 23:17:51,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1017. [2024-11-23 23:17:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 960 states have (on average 1.196875) internal successors, (1149), 963 states have internal predecessors, (1149), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:17:51,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1231 transitions. [2024-11-23 23:17:51,562 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1231 transitions. Word has length 112 [2024-11-23 23:17:51,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:51,562 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1231 transitions. [2024-11-23 23:17:51,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:17:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1231 transitions. [2024-11-23 23:17:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:17:51,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:51,564 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:51,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-23 23:17:51,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:51,765 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:51,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:51,766 INFO L85 PathProgramCache]: Analyzing trace with hash 696230059, now seen corresponding path program 1 times [2024-11-23 23:17:51,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:17:51,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597789052] [2024-11-23 23:17:51,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:51,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:51,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:17:51,770 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:17:51,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-23 23:17:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:52,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-23 23:17:52,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:52,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:17:52,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:17:52,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:52,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:17:53,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:53,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:17:53,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:53,450 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 37 treesize of output 28 [2024-11-23 23:17:53,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:53,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-23 23:17:53,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 62 [2024-11-23 23:17:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:17:54,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:17:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:17:54,628 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:17:54,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597789052] [2024-11-23 23:17:54,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597789052] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:54,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:17:54,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-23 23:17:54,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503977529] [2024-11-23 23:17:54,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:54,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:17:54,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:17:54,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:17:54,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:17:54,630 INFO L87 Difference]: Start difference. First operand 1017 states and 1231 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:17:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:56,435 INFO L93 Difference]: Finished difference Result 2077 states and 2512 transitions. [2024-11-23 23:17:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:17:56,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-23 23:17:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:56,440 INFO L225 Difference]: With dead ends: 2077 [2024-11-23 23:17:56,440 INFO L226 Difference]: Without dead ends: 1120 [2024-11-23 23:17:56,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:17:56,442 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 106 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:56,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 583 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:17:56,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-23 23:17:56,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 997. [2024-11-23 23:17:56,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 940 states have (on average 1.1925531914893617) internal successors, (1121), 943 states have internal predecessors, (1121), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-23 23:17:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1203 transitions. [2024-11-23 23:17:56,513 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1203 transitions. Word has length 112 [2024-11-23 23:17:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:56,514 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1203 transitions. [2024-11-23 23:17:56,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:17:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1203 transitions. [2024-11-23 23:17:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:17:56,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:56,515 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:56,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:56,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:56,716 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:56,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:56,716 INFO L85 PathProgramCache]: Analyzing trace with hash -414622102, now seen corresponding path program 1 times [2024-11-23 23:17:56,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:17:56,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376776591] [2024-11-23 23:17:56,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:56,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:17:56,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:17:56,718 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:17:56,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-23 23:17:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:57,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 23:17:57,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:57,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:17:58,376 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 74 treesize of output 32 [2024-11-23 23:17:58,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:58,432 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 80 treesize of output 52 [2024-11-23 23:17:58,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:17:58,594 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 155 treesize of output 103 [2024-11-23 23:18:00,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:18:00,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 112 [2024-11-23 23:18:06,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:18:06,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 309 treesize of output 111 [2024-11-23 23:18:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:18:06,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:18:06,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:18:06,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376776591] [2024-11-23 23:18:06,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376776591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:18:06,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:18:06,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:18:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34330028] [2024-11-23 23:18:06,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:18:06,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:18:06,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:18:06,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:18:06,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:18:06,783 INFO L87 Difference]: Start difference. First operand 997 states and 1203 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:18:16,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:30,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:35,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:18:37,206 INFO L93 Difference]: Finished difference Result 2027 states and 2434 transitions. [2024-11-23 23:18:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 23:18:37,207 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-23 23:18:37,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:18:37,214 INFO L225 Difference]: With dead ends: 2027 [2024-11-23 23:18:37,214 INFO L226 Difference]: Without dead ends: 1110 [2024-11-23 23:18:37,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:18:37,216 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 409 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:18:37,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 835 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1163 Invalid, 2 Unknown, 0 Unchecked, 24.1s Time] [2024-11-23 23:18:37,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-11-23 23:18:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1045. [2024-11-23 23:18:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 982 states have (on average 1.1883910386965377) internal successors, (1167), 986 states have internal predecessors, (1167), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-23 23:18:37,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1257 transitions. [2024-11-23 23:18:37,302 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1257 transitions. Word has length 112 [2024-11-23 23:18:37,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:18:37,302 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1257 transitions. [2024-11-23 23:18:37,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:18:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1257 transitions. [2024-11-23 23:18:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:18:37,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:18:37,303 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:18:37,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-23 23:18:37,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:18:37,505 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:18:37,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:18:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1724847266, now seen corresponding path program 1 times [2024-11-23 23:18:37,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:18:37,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019118752] [2024-11-23 23:18:37,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:18:37,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:18:37,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:18:37,510 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:18:37,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-23 23:18:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:18:38,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-23 23:18:38,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:18:38,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:18:39,393 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 76 treesize of output 34 [2024-11-23 23:18:39,496 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 76 treesize of output 45 [2024-11-23 23:18:39,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:18:39,654 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 149 treesize of output 85 [2024-11-23 23:18:41,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:18:41,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 115 [2024-11-23 23:18:48,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:18:48,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 311 treesize of output 119 [2024-11-23 23:18:49,622 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:18:49,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:18:49,622 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:18:49,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019118752] [2024-11-23 23:18:49,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019118752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:18:49,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:18:49,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:18:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238074353] [2024-11-23 23:18:49,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:18:49,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:18:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:18:49,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:18:49,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:18:49,624 INFO L87 Difference]: Start difference. First operand 1045 states and 1257 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:18:53,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:58,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:03,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:14,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:18,341 WARN L539 Checker$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] [2024-11-23 23:19:22,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:27,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:33,485 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] [2024-11-23 23:19:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:19:34,012 INFO L93 Difference]: Finished difference Result 2067 states and 2477 transitions. [2024-11-23 23:19:34,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:19:34,013 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-23 23:19:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:19:34,017 INFO L225 Difference]: With dead ends: 2067 [2024-11-23 23:19:34,017 INFO L226 Difference]: Without dead ends: 1102 [2024-11-23 23:19:34,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:19:34,019 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 351 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 62 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:19:34,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 548 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 737 Invalid, 4 Unknown, 0 Unchecked, 40.6s Time] [2024-11-23 23:19:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-23 23:19:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 826. [2024-11-23 23:19:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 779 states have (on average 1.2053915275994864) internal successors, (939), 781 states have internal predecessors, (939), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:19:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1003 transitions. [2024-11-23 23:19:34,079 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1003 transitions. Word has length 113 [2024-11-23 23:19:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:19:34,080 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1003 transitions. [2024-11-23 23:19:34,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:19:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1003 transitions. [2024-11-23 23:19:34,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:19:34,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:19:34,081 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:19:34,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-23 23:19:34,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:19:34,285 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:19:34,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:19:34,285 INFO L85 PathProgramCache]: Analyzing trace with hash 50160096, now seen corresponding path program 1 times [2024-11-23 23:19:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:19:34,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893862170] [2024-11-23 23:19:34,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:19:34,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:19:34,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:19:34,287 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:19:34,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-23 23:19:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:19:34,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-23 23:19:34,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:19:35,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:19:35,685 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 76 treesize of output 34 [2024-11-23 23:19:35,742 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 76 treesize of output 45 [2024-11-23 23:19:35,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:19:35,851 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 170 treesize of output 91 [2024-11-23 23:19:36,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:19:36,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 164 treesize of output 109 [2024-11-23 23:19:37,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:19:37,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 269 treesize of output 95 [2024-11-23 23:19:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:19:37,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:19:37,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:19:37,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893862170] [2024-11-23 23:19:37,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893862170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:19:37,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1147046186] [2024-11-23 23:19:37,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:19:37,650 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:19:37,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:19:37,653 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:19:37,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2024-11-23 23:19:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:19:39,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:19:39,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:19:40,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:19:41,439 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 64 treesize of output 32 [2024-11-23 23:19:41,546 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 62 treesize of output 41 [2024-11-23 23:19:41,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:19:41,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 129 treesize of output 103 [2024-11-23 23:19:42,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:19:42,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 151 treesize of output 127 [2024-11-23 23:19:43,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:19:43,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 232 treesize of output 104 [2024-11-23 23:19:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:19:43,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:19:44,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1147046186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:19:44,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:19:44,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2024-11-23 23:19:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094755984] [2024-11-23 23:19:44,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:19:44,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:19:44,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:19:44,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:19:44,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:19:44,022 INFO L87 Difference]: Start difference. First operand 826 states and 1003 transitions. Second operand has 20 states, 20 states have (on average 5.5) internal successors, (110), 19 states have internal predecessors, (110), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:19:57,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:59,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:19:59,609 INFO L93 Difference]: Finished difference Result 1812 states and 2184 transitions. [2024-11-23 23:19:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:19:59,611 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.5) internal successors, (110), 19 states have internal predecessors, (110), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 113 [2024-11-23 23:19:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:19:59,615 INFO L225 Difference]: With dead ends: 1812 [2024-11-23 23:19:59,615 INFO L226 Difference]: Without dead ends: 1065 [2024-11-23 23:19:59,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 23:19:59,617 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 797 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:19:59,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 602 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-23 23:19:59,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-23 23:19:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 873. [2024-11-23 23:19:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 826 states have (on average 1.1912832929782082) internal successors, (984), 828 states have internal predecessors, (984), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:19:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1048 transitions. [2024-11-23 23:19:59,700 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1048 transitions. Word has length 113 [2024-11-23 23:19:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:19:59,700 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1048 transitions. [2024-11-23 23:19:59,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.5) internal successors, (110), 19 states have internal predecessors, (110), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:19:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1048 transitions. [2024-11-23 23:19:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:19:59,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:19:59,702 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:19:59,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-23 23:19:59,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2024-11-23 23:20:00,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:20:00,103 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:20:00,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:20:00,103 INFO L85 PathProgramCache]: Analyzing trace with hash 730218466, now seen corresponding path program 1 times [2024-11-23 23:20:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:20:00,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99612747] [2024-11-23 23:20:00,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:20:00,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:00,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:20:00,105 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:20:00,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-23 23:20:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:20:00,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-23 23:20:00,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:20:00,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:20:01,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:20:01,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:01,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:20:01,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:01,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:20:01,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:01,690 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 37 treesize of output 28 [2024-11-23 23:20:01,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:01,853 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 48 treesize of output 44 [2024-11-23 23:20:01,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:01,963 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 93 treesize of output 68 [2024-11-23 23:20:02,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:02,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 98 [2024-11-23 23:20:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:20:03,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:20:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:20:03,703 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:20:03,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99612747] [2024-11-23 23:20:03,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99612747] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:20:03,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:20:03,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 18 [2024-11-23 23:20:03,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914675490] [2024-11-23 23:20:03,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:20:03,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:20:03,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:20:03,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:20:03,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:20:03,705 INFO L87 Difference]: Start difference. First operand 873 states and 1048 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:20:05,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:20:05,412 INFO L93 Difference]: Finished difference Result 1718 states and 2060 transitions. [2024-11-23 23:20:05,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:20:05,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-23 23:20:05,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:20:05,415 INFO L225 Difference]: With dead ends: 1718 [2024-11-23 23:20:05,415 INFO L226 Difference]: Without dead ends: 925 [2024-11-23 23:20:05,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:20:05,416 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 42 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:20:05,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 636 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 23:20:05,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-23 23:20:05,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 875. [2024-11-23 23:20:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 828 states have (on average 1.1908212560386473) internal successors, (986), 830 states have internal predecessors, (986), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:20:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1050 transitions. [2024-11-23 23:20:05,478 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1050 transitions. Word has length 113 [2024-11-23 23:20:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:20:05,479 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1050 transitions. [2024-11-23 23:20:05,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:20:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1050 transitions. [2024-11-23 23:20:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:20:05,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:20:05,480 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:20:05,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2024-11-23 23:20:05,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:05,681 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:20:05,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:20:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash 685888299, now seen corresponding path program 1 times [2024-11-23 23:20:05,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:20:05,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140398888] [2024-11-23 23:20:05,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:20:05,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:05,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:20:05,685 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:20:05,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-23 23:20:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:20:06,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:20:06,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:20:06,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:06,488 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 40 treesize of output 16 [2024-11-23 23:20:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:20:06,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:20:06,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:20:06,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140398888] [2024-11-23 23:20:06,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140398888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:20:06,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:20:06,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:20:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233464920] [2024-11-23 23:20:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:20:06,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:20:06,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:20:06,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:20:06,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:20:06,557 INFO L87 Difference]: Start difference. First operand 875 states and 1050 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:20:09,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:20:09,838 INFO L93 Difference]: Finished difference Result 1818 states and 2173 transitions. [2024-11-23 23:20:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:20:09,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-23 23:20:09,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:20:09,840 INFO L225 Difference]: With dead ends: 1818 [2024-11-23 23:20:09,841 INFO L226 Difference]: Without dead ends: 1023 [2024-11-23 23:20:09,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:20:09,842 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 64 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:20:09,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 497 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-23 23:20:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-23 23:20:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 883. [2024-11-23 23:20:09,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 836 states have (on average 1.1889952153110048) internal successors, (994), 838 states have internal predecessors, (994), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:20:09,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1058 transitions. [2024-11-23 23:20:09,912 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1058 transitions. Word has length 114 [2024-11-23 23:20:09,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:20:09,913 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1058 transitions. [2024-11-23 23:20:09,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:20:09,913 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1058 transitions. [2024-11-23 23:20:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:20:09,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:20:09,914 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:20:09,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-11-23 23:20:10,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:10,115 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:20:10,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:20:10,115 INFO L85 PathProgramCache]: Analyzing trace with hash 900643250, now seen corresponding path program 1 times [2024-11-23 23:20:10,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:20:10,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180375013] [2024-11-23 23:20:10,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:20:10,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:10,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:20:10,117 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:20:10,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-23 23:20:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:20:10,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-23 23:20:10,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:20:10,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:20:10,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:20:11,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:11,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:20:11,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:11,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:20:11,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:11,394 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 37 treesize of output 28 [2024-11-23 23:20:11,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:11,470 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 37 treesize of output 39 [2024-11-23 23:20:11,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 53 [2024-11-23 23:20:14,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:14,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 83 [2024-11-23 23:20:16,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:16,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 40 [2024-11-23 23:20:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:20:17,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:20:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:20:24,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:20:24,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180375013] [2024-11-23 23:20:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180375013] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:20:24,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:20:24,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-23 23:20:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387111193] [2024-11-23 23:20:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:20:24,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:20:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:20:24,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:20:24,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=189, Unknown=1, NotChecked=0, Total=240 [2024-11-23 23:20:24,683 INFO L87 Difference]: Start difference. First operand 883 states and 1058 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:20:30,902 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 [] [2024-11-23 23:20:35,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:20:39,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:20:43,379 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 [] [2024-11-23 23:20:46,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:20:46,145 INFO L93 Difference]: Finished difference Result 1754 states and 2096 transitions. [2024-11-23 23:20:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:20:46,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-23 23:20:46,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:20:46,155 INFO L225 Difference]: With dead ends: 1754 [2024-11-23 23:20:46,155 INFO L226 Difference]: Without dead ends: 951 [2024-11-23 23:20:46,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=64, Invalid=241, Unknown=1, NotChecked=0, Total=306 [2024-11-23 23:20:46,156 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 74 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:20:46,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 367 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 4 Unknown, 0 Unchecked, 20.5s Time] [2024-11-23 23:20:46,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-23 23:20:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 876. [2024-11-23 23:20:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 829 states have (on average 1.1845597104945718) internal successors, (982), 831 states have internal predecessors, (982), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:20:46,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1046 transitions. [2024-11-23 23:20:46,232 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1046 transitions. Word has length 114 [2024-11-23 23:20:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:20:46,232 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1046 transitions. [2024-11-23 23:20:46,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:20:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1046 transitions. [2024-11-23 23:20:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:20:46,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:20:46,233 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:20:46,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-23 23:20:46,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:46,434 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:20:46,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:20:46,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1143872572, now seen corresponding path program 1 times [2024-11-23 23:20:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:20:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207170870] [2024-11-23 23:20:46,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:20:46,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:20:46,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:20:46,436 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:20:46,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-23 23:20:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:20:47,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:20:47,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:20:47,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:20:47,902 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 76 treesize of output 34 [2024-11-23 23:20:47,996 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 76 treesize of output 45 [2024-11-23 23:20:48,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:48,135 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 149 treesize of output 85 [2024-11-23 23:20:49,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:49,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 91 [2024-11-23 23:20:54,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:20:54,791 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 288 treesize of output 108 [2024-11-23 23:20:55,219 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:20:55,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:20:55,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:20:55,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207170870] [2024-11-23 23:20:55,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207170870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:20:55,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:20:55,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:20:55,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513849349] [2024-11-23 23:20:55,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:20:55,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:20:55,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:20:55,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:20:55,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:20:55,220 INFO L87 Difference]: Start difference. First operand 876 states and 1046 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:21:00,944 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] [2024-11-23 23:21:02,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:21:07,518 WARN L539 Checker$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] [2024-11-23 23:21:16,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:21:18,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:21:21,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:21:23,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:21:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:21:24,782 INFO L93 Difference]: Finished difference Result 1888 states and 2244 transitions. [2024-11-23 23:21:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:21:24,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-23 23:21:24,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:21:24,790 INFO L225 Difference]: With dead ends: 1888 [2024-11-23 23:21:24,790 INFO L226 Difference]: Without dead ends: 1092 [2024-11-23 23:21:24,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:21:24,791 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 282 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:21:24,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 713 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 889 Invalid, 2 Unknown, 0 Unchecked, 27.5s Time] [2024-11-23 23:21:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-23 23:21:24,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 854. [2024-11-23 23:21:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 807 states have (on average 1.1871127633209417) internal successors, (958), 809 states have internal predecessors, (958), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:21:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1022 transitions. [2024-11-23 23:21:24,857 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1022 transitions. Word has length 114 [2024-11-23 23:21:24,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:21:24,857 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1022 transitions. [2024-11-23 23:21:24,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:21:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1022 transitions. [2024-11-23 23:21:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:21:24,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:21:24,859 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:24,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2024-11-23 23:21:25,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:21:25,059 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:21:25,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:25,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1732550676, now seen corresponding path program 1 times [2024-11-23 23:21:25,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:21:25,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561700041] [2024-11-23 23:21:25,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:25,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:21:25,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:21:25,062 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:21:25,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-23 23:21:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:25,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:21:25,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:21:25,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:21:25,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:21:25,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:25,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:21:26,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:26,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:21:26,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:26,363 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 37 treesize of output 28 [2024-11-23 23:21:26,422 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:26,422 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 37 treesize of output 39 [2024-11-23 23:21:26,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 53 [2024-11-23 23:21:27,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:27,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 108 [2024-11-23 23:21:30,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:30,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 52 [2024-11-23 23:21:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:21:31,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:21:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:21:38,904 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:21:38,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561700041] [2024-11-23 23:21:38,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561700041] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:21:38,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:21:38,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-23 23:21:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152966854] [2024-11-23 23:21:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:21:38,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:21:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:21:38,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:21:38,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=189, Unknown=1, NotChecked=0, Total=240 [2024-11-23 23:21:38,906 INFO L87 Difference]: Start difference. First operand 854 states and 1022 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:21:46,452 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 [] [2024-11-23 23:21:50,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:21:50,184 INFO L93 Difference]: Finished difference Result 1636 states and 1951 transitions. [2024-11-23 23:21:50,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:21:50,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-23 23:21:50,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:21:50,198 INFO L225 Difference]: With dead ends: 1636 [2024-11-23 23:21:50,198 INFO L226 Difference]: Without dead ends: 862 [2024-11-23 23:21:50,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=64, Invalid=241, Unknown=1, NotChecked=0, Total=306 [2024-11-23 23:21:50,199 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 28 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:21:50,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 391 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2024-11-23 23:21:50,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-23 23:21:50,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 823. [2024-11-23 23:21:50,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 776 states have (on average 1.1804123711340206) internal successors, (916), 778 states have internal predecessors, (916), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:21:50,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 980 transitions. [2024-11-23 23:21:50,320 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 980 transitions. Word has length 115 [2024-11-23 23:21:50,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:21:50,321 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 980 transitions. [2024-11-23 23:21:50,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:21:50,321 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 980 transitions. [2024-11-23 23:21:50,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:21:50,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:21:50,321 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:50,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-11-23 23:21:50,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:21:50,522 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:21:50,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:50,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1593482904, now seen corresponding path program 1 times [2024-11-23 23:21:50,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:21:50,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108039720] [2024-11-23 23:21:50,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:50,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:21:50,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:21:50,529 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:21:50,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-23 23:21:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:51,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:21:51,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:21:51,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:21:52,447 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 74 treesize of output 32 [2024-11-23 23:21:52,548 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 74 treesize of output 43 [2024-11-23 23:21:52,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:52,715 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 147 treesize of output 83 [2024-11-23 23:21:54,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:21:54,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 156 treesize of output 113 [2024-11-23 23:22:00,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:00,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 309 treesize of output 117 [2024-11-23 23:22:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:22:01,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:01,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:22:01,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108039720] [2024-11-23 23:22:01,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108039720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:01,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:01,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:22:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45800914] [2024-11-23 23:22:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:01,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:22:01,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:22:01,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:22:01,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:22:01,291 INFO L87 Difference]: Start difference. First operand 823 states and 980 transitions. Second operand has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:22:08,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:12,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:16,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:24,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:31,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:33,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:38,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:43,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:48,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:22:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:48,959 INFO L93 Difference]: Finished difference Result 1759 states and 2081 transitions. [2024-11-23 23:22:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 23:22:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-23 23:22:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:48,963 INFO L225 Difference]: With dead ends: 1759 [2024-11-23 23:22:48,963 INFO L226 Difference]: Without dead ends: 1016 [2024-11-23 23:22:48,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:22:48,964 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 280 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 53 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:48,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 829 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1174 Invalid, 3 Unknown, 0 Unchecked, 37.7s Time] [2024-11-23 23:22:48,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-23 23:22:49,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 826. [2024-11-23 23:22:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 779 states have (on average 1.1797175866495506) internal successors, (919), 781 states have internal predecessors, (919), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:22:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 983 transitions. [2024-11-23 23:22:49,056 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 983 transitions. Word has length 115 [2024-11-23 23:22:49,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:49,056 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 983 transitions. [2024-11-23 23:22:49,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:22:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 983 transitions. [2024-11-23 23:22:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:49,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:49,057 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:49,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2024-11-23 23:22:49,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:22:49,257 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:49,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:49,258 INFO L85 PathProgramCache]: Analyzing trace with hash -926477030, now seen corresponding path program 1 times [2024-11-23 23:22:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:22:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820304350] [2024-11-23 23:22:49,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:49,258 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 [2024-11-23 23:22:49,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:22:49,260 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:22:49,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-23 23:22:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:50,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:22:50,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:50,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:22:50,915 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 74 treesize of output 32 [2024-11-23 23:22:50,978 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 74 treesize of output 43 [2024-11-23 23:22:51,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:51,102 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 168 treesize of output 89 [2024-11-23 23:22:51,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:51,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 107 [2024-11-23 23:22:52,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:52,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 263 treesize of output 95 [2024-11-23 23:22:52,706 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:22:52,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:22:53,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:22:53,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820304350] [2024-11-23 23:22:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820304350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:53,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1391997053] [2024-11-23 23:22:53,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:53,237 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:22:53,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:22:53,239 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:22:53,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2024-11-23 23:22:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:55,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 23:22:55,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:56,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:22:57,238 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 62 treesize of output 30 [2024-11-23 23:22:57,321 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 60 treesize of output 39 [2024-11-23 23:22:57,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:57,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 101 [2024-11-23 23:22:57,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:57,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 149 treesize of output 125 [2024-11-23 23:22:59,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:22:59,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 230 treesize of output 102 [2024-11-23 23:22:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:22:59,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:23:00,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1391997053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:23:00,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:23:00,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2024-11-23 23:23:00,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044318300] [2024-11-23 23:23:00,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:23:00,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 23:23:00,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:23:00,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 23:23:00,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2024-11-23 23:23:00,042 INFO L87 Difference]: Start difference. First operand 826 states and 983 transitions. Second operand has 26 states, 24 states have (on average 4.75) internal successors, (114), 23 states have internal predecessors, (114), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:23:11,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:23:19,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:23:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:21,990 INFO L93 Difference]: Finished difference Result 1729 states and 2046 transitions. [2024-11-23 23:23:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 23:23:21,991 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.75) internal successors, (114), 23 states have internal predecessors, (114), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 115 [2024-11-23 23:23:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:21,992 INFO L225 Difference]: With dead ends: 1729 [2024-11-23 23:23:21,993 INFO L226 Difference]: Without dead ends: 983 [2024-11-23 23:23:21,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 269 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=636, Invalid=2226, Unknown=0, NotChecked=0, Total=2862 [2024-11-23 23:23:21,994 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 483 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:21,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 916 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2024-11-23 23:23:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-11-23 23:23:22,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 722. [2024-11-23 23:23:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 675 states have (on average 1.1748148148148148) internal successors, (793), 677 states have internal predecessors, (793), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:23:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 857 transitions. [2024-11-23 23:23:22,062 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 857 transitions. Word has length 115 [2024-11-23 23:23:22,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:22,063 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 857 transitions. [2024-11-23 23:23:22,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.75) internal successors, (114), 23 states have internal predecessors, (114), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:23:22,063 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 857 transitions. [2024-11-23 23:23:22,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:23:22,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:22,063 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:22,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2024-11-23 23:23:22,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-11-23 23:23:22,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:23:22,464 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:22,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:22,465 INFO L85 PathProgramCache]: Analyzing trace with hash -161276789, now seen corresponding path program 1 times [2024-11-23 23:23:22,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:23:22,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348225934] [2024-11-23 23:23:22,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:22,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:23:22,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:23:22,467 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:23:22,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-11-23 23:23:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:23,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-23 23:23:23,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:23,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:23:23,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:23:23,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:23,478 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 42 treesize of output 29 [2024-11-23 23:23:23,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:23,622 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 42 treesize of output 29 [2024-11-23 23:23:23,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:23,776 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 42 treesize of output 29 [2024-11-23 23:23:23,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:23,995 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 42 treesize of output 29 [2024-11-23 23:23:24,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:24,124 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 54 treesize of output 44 [2024-11-23 23:23:24,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:24,486 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 81 treesize of output 64 [2024-11-23 23:23:24,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:24,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 87 [2024-11-23 23:23:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 51 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-23 23:23:25,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:23:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:23:26,005 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:23:26,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348225934] [2024-11-23 23:23:26,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348225934] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:23:26,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:23:26,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2024-11-23 23:23:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184194748] [2024-11-23 23:23:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:26,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:23:26,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:23:26,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:23:26,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:23:26,007 INFO L87 Difference]: Start difference. First operand 722 states and 857 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:23:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:27,859 INFO L93 Difference]: Finished difference Result 1480 states and 1749 transitions. [2024-11-23 23:23:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:23:27,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-23 23:23:27,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:27,863 INFO L225 Difference]: With dead ends: 1480 [2024-11-23 23:23:27,863 INFO L226 Difference]: Without dead ends: 826 [2024-11-23 23:23:27,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:23:27,865 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 88 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:27,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 482 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:23:27,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-23 23:23:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 722. [2024-11-23 23:23:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 675 states have (on average 1.171851851851852) internal successors, (791), 677 states have internal predecessors, (791), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:23:27,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 855 transitions. [2024-11-23 23:23:27,995 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 855 transitions. Word has length 116 [2024-11-23 23:23:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:27,996 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 855 transitions. [2024-11-23 23:23:27,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:23:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 855 transitions. [2024-11-23 23:23:27,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:23:27,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:27,997 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:28,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Ended with exit code 0 [2024-11-23 23:23:28,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:23:28,198 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:28,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash -223316403, now seen corresponding path program 1 times [2024-11-23 23:23:28,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:23:28,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330069776] [2024-11-23 23:23:28,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:28,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:23:28,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:23:28,202 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:23:28,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-11-23 23:23:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:29,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-23 23:23:29,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:29,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:23:29,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:23:29,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:29,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:23:29,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:29,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:23:29,782 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:29,782 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 37 treesize of output 28 [2024-11-23 23:23:29,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:29,949 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 48 treesize of output 44 [2024-11-23 23:23:30,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 78 [2024-11-23 23:23:34,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:34,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 121 [2024-11-23 23:23:42,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:42,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 156 treesize of output 60 [2024-11-23 23:23:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:23:43,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:23:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:23:53,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:23:53,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330069776] [2024-11-23 23:23:53,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330069776] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:23:53,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:23:53,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 30 [2024-11-23 23:23:53,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065138477] [2024-11-23 23:23:53,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:53,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:23:53,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:23:53,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:23:53,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2024-11-23 23:23:53,866 INFO L87 Difference]: Start difference. First operand 722 states and 855 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:24:04,787 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 [] [2024-11-23 23:24:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:24:16,246 INFO L93 Difference]: Finished difference Result 1480 states and 1744 transitions. [2024-11-23 23:24:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:24:16,250 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-23 23:24:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:24:16,252 INFO L225 Difference]: With dead ends: 1480 [2024-11-23 23:24:16,252 INFO L226 Difference]: Without dead ends: 838 [2024-11-23 23:24:16,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2024-11-23 23:24:16,254 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 157 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:24:16,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 795 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 628 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2024-11-23 23:24:16,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-23 23:24:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 740. [2024-11-23 23:24:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 693 states have (on average 1.1702741702741704) internal successors, (811), 695 states have internal predecessors, (811), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:24:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 875 transitions. [2024-11-23 23:24:16,343 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 875 transitions. Word has length 116 [2024-11-23 23:24:16,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:24:16,343 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 875 transitions. [2024-11-23 23:24:16,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:24:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 875 transitions. [2024-11-23 23:24:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:24:16,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:24:16,344 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:16,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2024-11-23 23:24:16,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:24:16,545 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:24:16,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:16,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1637500531, now seen corresponding path program 1 times [2024-11-23 23:24:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:24:16,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795499202] [2024-11-23 23:24:16,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:24:16,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:24:16,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:24:16,548 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:24:16,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-11-23 23:24:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:24:17,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:24:17,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:24:17,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 23:24:17,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-23 23:24:17,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:17,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:24:17,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:17,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-23 23:24:17,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:17,970 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 37 treesize of output 28 [2024-11-23 23:24:18,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:18,004 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 32 treesize of output 14 [2024-11-23 23:24:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 141 proven. 18 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:24:19,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:24:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:24:20,204 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:24:20,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795499202] [2024-11-23 23:24:20,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795499202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:24:20,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:24:20,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-23 23:24:20,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525423388] [2024-11-23 23:24:20,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:24:20,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:24:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:24:20,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:24:20,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:24:20,207 INFO L87 Difference]: Start difference. First operand 740 states and 875 transitions. Second operand has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-23 23:24:27,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:24:27,123 INFO L93 Difference]: Finished difference Result 1280 states and 1511 transitions. [2024-11-23 23:24:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:24:27,124 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 116 [2024-11-23 23:24:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:24:27,127 INFO L225 Difference]: With dead ends: 1280 [2024-11-23 23:24:27,127 INFO L226 Difference]: Without dead ends: 620 [2024-11-23 23:24:27,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:24:27,129 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 197 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:24:27,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 229 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 23:24:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-23 23:24:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 612. [2024-11-23 23:24:27,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 565 states have (on average 1.1557522123893806) internal successors, (653), 567 states have internal predecessors, (653), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:24:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 717 transitions. [2024-11-23 23:24:27,258 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 717 transitions. Word has length 116 [2024-11-23 23:24:27,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:24:27,259 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 717 transitions. [2024-11-23 23:24:27,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-23 23:24:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 717 transitions. [2024-11-23 23:24:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:24:27,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:24:27,260 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:27,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-11-23 23:24:27,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:24:27,461 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:24:27,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:27,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1354852406, now seen corresponding path program 1 times [2024-11-23 23:24:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:24:27,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881914186] [2024-11-23 23:24:27,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:24:27,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:24:27,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:24:27,465 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 23:24:27,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116ff2d2-f284-4be9-880e-7e86a3f94b0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-11-23 23:24:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:24:28,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 23:24:28,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:24:28,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 23:24:29,078 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 74 treesize of output 32 [2024-11-23 23:24:29,163 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 74 treesize of output 43 [2024-11-23 23:24:29,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:29,303 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 147 treesize of output 83 [2024-11-23 23:24:31,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:31,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 89 [2024-11-23 23:24:36,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:36,791 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 286 treesize of output 106 [2024-11-23 23:24:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:24:37,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:24:37,322 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:24:37,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881914186] [2024-11-23 23:24:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881914186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:24:37,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:24:37,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:24:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465626666] [2024-11-23 23:24:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:24:37,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:24:37,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:24:37,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:24:37,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:24:37,323 INFO L87 Difference]: Start difference. First operand 612 states and 717 transitions. Second operand has 14 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:24:42,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:24:46,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:24:51,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:24:57,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:25:02,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]