./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3e0774e78cf4ed6ba09a877be2127aeb0fe9129940fc78943597bbe0bd3d6c8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:29:28,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:29:28,101 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:29:28,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:29:28,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:29:28,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:29:28,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:29:28,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:29:28,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:29:28,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:29:28,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:29:28,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:29:28,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:29:28,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:29:28,131 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:29:28,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:29:28,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:29:28,131 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:29:28,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:29:28,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:29:28,132 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:28,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:28,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:28,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:29:28,133 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:29:28,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:29:28,134 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_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e0774e78cf4ed6ba09a877be2127aeb0fe9129940fc78943597bbe0bd3d6c8 [2024-12-02 13:29:28,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:29:28,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:29:28,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:29:28,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:29:28,383 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:29:28,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i [2024-12-02 13:29:31,047 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/b4df0318b/4c412afcf28645819dffe559e35ae850/FLAGd0d72b4de [2024-12-02 13:29:31,233 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:29:31,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i [2024-12-02 13:29:31,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/b4df0318b/4c412afcf28645819dffe559e35ae850/FLAGd0d72b4de [2024-12-02 13:29:31,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/b4df0318b/4c412afcf28645819dffe559e35ae850 [2024-12-02 13:29:31,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:29:31,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:29:31,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:31,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:29:31,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:29:31,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6431aeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31, skipping insertion in model container [2024-12-02 13:29:31,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:29:31,413 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_f742a30c-adba-4ec2-97d6-98c958125fe7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i[916,929] [2024-12-02 13:29:31,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:29:31,474 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:29:31,483 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_f742a30c-adba-4ec2-97d6-98c958125fe7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i[916,929] [2024-12-02 13:29:31,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:29:31,531 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:29:31,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31 WrapperNode [2024-12-02 13:29:31,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:31,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:29:31,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:29:31,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:29:31,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,580 INFO L138 Inliner]: procedures = 30, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 478 [2024-12-02 13:29:31,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:29:31,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:29:31,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:29:31,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:29:31,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,600 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 13:29:31,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,617 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:29:31,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:29:31,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:29:31,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:29:31,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (1/1) ... [2024-12-02 13:29:31,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:31,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:31,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:31,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 13:29:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 13:29:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:29:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:29:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 13:29:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:29:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:29:31,788 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:29:31,790 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:29:32,355 INFO L? ?]: Removed 113 outVars from TransFormulas that were not future-live. [2024-12-02 13:29:32,355 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:29:32,367 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:29:32,367 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:29:32,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:32 BoogieIcfgContainer [2024-12-02 13:29:32,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:29:32,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:29:32,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:29:32,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:29:32,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:29:31" (1/3) ... [2024-12-02 13:29:32,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9347e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:32, skipping insertion in model container [2024-12-02 13:29:32,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:31" (2/3) ... [2024-12-02 13:29:32,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9347e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:32, skipping insertion in model container [2024-12-02 13:29:32,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:32" (3/3) ... [2024-12-02 13:29:32,377 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-96.i [2024-12-02 13:29:32,391 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:29:32,393 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-96.i that has 2 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:29:32,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:29:32,447 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;@7ac35bcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:29:32,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:29:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:32,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:32,461 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:32,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:32,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:32,466 INFO L85 PathProgramCache]: Analyzing trace with hash 407996187, now seen corresponding path program 1 times [2024-12-02 13:29:32,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:32,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631425220] [2024-12-02 13:29:32,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:32,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 13:29:32,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:32,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631425220] [2024-12-02 13:29:32,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631425220] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:29:32,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509478278] [2024-12-02 13:29:32,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:32,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:29:32,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:32,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:29:32,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:29:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:33,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:29:33,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 13:29:33,036 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:33,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509478278] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:33,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:29:33,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:29:33,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504064439] [2024-12-02 13:29:33,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:33,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:29:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:33,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:29:33,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:29:33,058 INFO L87 Difference]: Start difference. First operand has 108 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:29:33,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:33,078 INFO L93 Difference]: Finished difference Result 209 states and 328 transitions. [2024-12-02 13:29:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:29:33,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-12-02 13:29:33,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:33,085 INFO L225 Difference]: With dead ends: 209 [2024-12-02 13:29:33,086 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 13:29:33,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:29:33,091 INFO L435 NwaCegarLoop]: 152 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, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:33,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:33,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 13:29:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 13:29:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 152 transitions. [2024-12-02 13:29:33,122 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 152 transitions. Word has length 131 [2024-12-02 13:29:33,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:33,123 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 152 transitions. [2024-12-02 13:29:33,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:29:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 152 transitions. [2024-12-02 13:29:33,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:33,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:33,126 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:33,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:29:33,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:29:33,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:33,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash 575861183, now seen corresponding path program 1 times [2024-12-02 13:29:33,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:33,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004742378] [2024-12-02 13:29:33,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:33,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:33,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:33,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004742378] [2024-12-02 13:29:33,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004742378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:33,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687465272] [2024-12-02 13:29:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:33,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:33,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:33,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:33,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:33,628 INFO L87 Difference]: Start difference. First operand 104 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:33,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:33,668 INFO L93 Difference]: Finished difference Result 208 states and 305 transitions. [2024-12-02 13:29:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:33,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:33,671 INFO L225 Difference]: With dead ends: 208 [2024-12-02 13:29:33,671 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 13:29:33,672 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 [2024-12-02 13:29:33,672 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 436 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 [2024-12-02 13:29:33,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 436 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:33,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 13:29:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-12-02 13:29:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 154 transitions. [2024-12-02 13:29:33,683 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 154 transitions. Word has length 131 [2024-12-02 13:29:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:33,684 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 154 transitions. [2024-12-02 13:29:33,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 154 transitions. [2024-12-02 13:29:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:33,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:33,687 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:33,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:29:33,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:33,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1255919553, now seen corresponding path program 1 times [2024-12-02 13:29:33,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:33,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470635709] [2024-12-02 13:29:33,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:33,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:33,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:33,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470635709] [2024-12-02 13:29:33,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470635709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:33,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:33,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8760393] [2024-12-02 13:29:33,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:33,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:33,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:33,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:33,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:33,915 INFO L87 Difference]: Start difference. First operand 106 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:33,949 INFO L93 Difference]: Finished difference Result 212 states and 309 transitions. [2024-12-02 13:29:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:33,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:33,951 INFO L225 Difference]: With dead ends: 212 [2024-12-02 13:29:33,951 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 13:29:33,952 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 [2024-12-02 13:29:33,953 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 437 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 [2024-12-02 13:29:33,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 437 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:33,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 13:29:33,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-12-02 13:29:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 156 transitions. [2024-12-02 13:29:33,961 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 156 transitions. Word has length 131 [2024-12-02 13:29:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:33,961 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 156 transitions. [2024-12-02 13:29:33,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 156 transitions. [2024-12-02 13:29:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:33,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:33,964 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:33,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:29:33,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:33,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:33,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1264040381, now seen corresponding path program 1 times [2024-12-02 13:29:33,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:33,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911045141] [2024-12-02 13:29:33,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:33,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:34,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:34,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911045141] [2024-12-02 13:29:34,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911045141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:34,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:34,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:34,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384560347] [2024-12-02 13:29:34,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:34,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:34,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:34,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:34,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:34,175 INFO L87 Difference]: Start difference. First operand 108 states and 156 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:34,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:34,200 INFO L93 Difference]: Finished difference Result 216 states and 313 transitions. [2024-12-02 13:29:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:34,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:34,202 INFO L225 Difference]: With dead ends: 216 [2024-12-02 13:29:34,202 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 13:29:34,202 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 [2024-12-02 13:29:34,203 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 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 [2024-12-02 13:29:34,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:34,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 13:29:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-12-02 13:29:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2024-12-02 13:29:34,211 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 131 [2024-12-02 13:29:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:34,211 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2024-12-02 13:29:34,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2024-12-02 13:29:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:34,213 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:34,213 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:34,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:29:34,214 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:34,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1262193339, now seen corresponding path program 1 times [2024-12-02 13:29:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918062230] [2024-12-02 13:29:34,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:34,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:34,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918062230] [2024-12-02 13:29:34,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918062230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:34,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:34,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:34,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253907907] [2024-12-02 13:29:34,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:34,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:34,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:34,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:34,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:34,560 INFO L87 Difference]: Start difference. First operand 110 states and 158 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:35,002 INFO L93 Difference]: Finished difference Result 219 states and 316 transitions. [2024-12-02 13:29:35,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:29:35,003 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:35,005 INFO L225 Difference]: With dead ends: 219 [2024-12-02 13:29:35,005 INFO L226 Difference]: Without dead ends: 112 [2024-12-02 13:29:35,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:35,006 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:35,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 455 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:29:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-12-02 13:29:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-12-02 13:29:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 160 transitions. [2024-12-02 13:29:35,015 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 160 transitions. Word has length 131 [2024-12-02 13:29:35,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:35,016 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 160 transitions. [2024-12-02 13:29:35,016 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 160 transitions. [2024-12-02 13:29:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:35,017 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:35,018 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:35,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:29:35,018 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:35,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1343830215, now seen corresponding path program 1 times [2024-12-02 13:29:35,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:35,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959936682] [2024-12-02 13:29:35,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:35,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:36,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:36,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959936682] [2024-12-02 13:29:36,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959936682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:36,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:36,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:29:36,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599218854] [2024-12-02 13:29:36,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:36,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:29:36,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:36,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:29:36,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:36,848 INFO L87 Difference]: Start difference. First operand 112 states and 160 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:29:37,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:37,566 INFO L93 Difference]: Finished difference Result 294 states and 419 transitions. [2024-12-02 13:29:37,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:29:37,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-12-02 13:29:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:37,568 INFO L225 Difference]: With dead ends: 294 [2024-12-02 13:29:37,568 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 13:29:37,569 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 [2024-12-02 13:29:37,570 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 79 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:37,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 521 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:29:37,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 13:29:37,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2024-12-02 13:29:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.3773584905660377) internal successors, (219), 160 states have internal predecessors, (219), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:29:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 259 transitions. [2024-12-02 13:29:37,584 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 259 transitions. Word has length 131 [2024-12-02 13:29:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:37,584 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 259 transitions. [2024-12-02 13:29:37,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:29:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 259 transitions. [2024-12-02 13:29:37,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 13:29:37,586 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:37,586 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:37,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:29:37,586 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:37,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1325067934, now seen corresponding path program 1 times [2024-12-02 13:29:37,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:37,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493083506] [2024-12-02 13:29:37,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:37,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:37,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493083506] [2024-12-02 13:29:37,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493083506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:37,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:37,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:29:37,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990276559] [2024-12-02 13:29:37,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:37,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:29:37,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:37,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:29:37,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:29:37,694 INFO L87 Difference]: Start difference. First operand 182 states and 259 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:37,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:37,725 INFO L93 Difference]: Finished difference Result 396 states and 562 transitions. [2024-12-02 13:29:37,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:29:37,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 13:29:37,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:37,728 INFO L225 Difference]: With dead ends: 396 [2024-12-02 13:29:37,728 INFO L226 Difference]: Without dead ends: 217 [2024-12-02 13:29:37,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:29:37,729 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 65 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:37,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-12-02 13:29:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 178. [2024-12-02 13:29:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 155 states have (on average 1.367741935483871) internal successors, (212), 156 states have internal predecessors, (212), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:29:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 252 transitions. [2024-12-02 13:29:37,741 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 252 transitions. Word has length 133 [2024-12-02 13:29:37,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:37,742 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 252 transitions. [2024-12-02 13:29:37,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 252 transitions. [2024-12-02 13:29:37,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 13:29:37,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:37,744 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:37,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:29:37,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:37,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash 215562725, now seen corresponding path program 1 times [2024-12-02 13:29:37,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:37,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824337700] [2024-12-02 13:29:37,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 13:29:37,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:37,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824337700] [2024-12-02 13:29:37,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824337700] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:29:37,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809083901] [2024-12-02 13:29:37,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:29:37,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:29:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:38,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:38,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809083901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:38,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:29:38,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 13:29:38,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557266660] [2024-12-02 13:29:38,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:38,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:38,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:38,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:38,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:29:38,240 INFO L87 Difference]: Start difference. First operand 178 states and 252 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:38,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:38,280 INFO L93 Difference]: Finished difference Result 359 states and 509 transitions. [2024-12-02 13:29:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:29:38,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 13:29:38,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:38,284 INFO L225 Difference]: With dead ends: 359 [2024-12-02 13:29:38,284 INFO L226 Difference]: Without dead ends: 184 [2024-12-02 13:29:38,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:29:38,285 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:38,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:38,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-02 13:29:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-12-02 13:29:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 161 states have (on average 1.3540372670807452) internal successors, (218), 162 states have internal predecessors, (218), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:29:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2024-12-02 13:29:38,298 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 133 [2024-12-02 13:29:38,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:38,298 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2024-12-02 13:29:38,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2024-12-02 13:29:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 13:29:38,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:38,300 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:38,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:29:38,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:29:38,501 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:38,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -958332128, now seen corresponding path program 1 times [2024-12-02 13:29:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331025051] [2024-12-02 13:29:38,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:38,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:38,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331025051] [2024-12-02 13:29:38,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331025051] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:38,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:38,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:29:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420974867] [2024-12-02 13:29:38,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:38,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:29:38,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:38,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:29:38,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:29:38,613 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:38,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:38,753 INFO L93 Difference]: Finished difference Result 368 states and 515 transitions. [2024-12-02 13:29:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:29:38,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 13:29:38,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:38,756 INFO L225 Difference]: With dead ends: 368 [2024-12-02 13:29:38,756 INFO L226 Difference]: Without dead ends: 187 [2024-12-02 13:29:38,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:29:38,757 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 67 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:38,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 342 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:29:38,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-12-02 13:29:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2024-12-02 13:29:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 162 states have internal predecessors, (217), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:29:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 257 transitions. [2024-12-02 13:29:38,769 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 257 transitions. Word has length 133 [2024-12-02 13:29:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:38,769 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 257 transitions. [2024-12-02 13:29:38,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 257 transitions. [2024-12-02 13:29:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 13:29:38,771 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:38,771 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:38,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:29:38,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:38,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1794922117, now seen corresponding path program 1 times [2024-12-02 13:29:38,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:38,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212897847] [2024-12-02 13:29:38,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:39,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212897847] [2024-12-02 13:29:39,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212897847] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:39,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:39,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:39,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419035743] [2024-12-02 13:29:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:39,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:39,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:39,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:39,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:39,328 INFO L87 Difference]: Start difference. First operand 184 states and 257 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:39,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:39,621 INFO L93 Difference]: Finished difference Result 538 states and 748 transitions. [2024-12-02 13:29:39,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:39,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-12-02 13:29:39,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:39,625 INFO L225 Difference]: With dead ends: 538 [2024-12-02 13:29:39,625 INFO L226 Difference]: Without dead ends: 357 [2024-12-02 13:29:39,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:39,626 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 235 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:39,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 316 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:29:39,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-12-02 13:29:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 300. [2024-12-02 13:29:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 255 states have (on average 1.3254901960784313) internal successors, (338), 257 states have internal predecessors, (338), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:29:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 418 transitions. [2024-12-02 13:29:39,649 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 418 transitions. Word has length 135 [2024-12-02 13:29:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:39,650 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 418 transitions. [2024-12-02 13:29:39,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 418 transitions. [2024-12-02 13:29:39,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 13:29:39,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:39,652 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:39,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:29:39,652 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:39,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:39,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1386351378, now seen corresponding path program 1 times [2024-12-02 13:29:39,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:39,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133485316] [2024-12-02 13:29:39,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:39,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:39,827 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:39,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:39,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133485316] [2024-12-02 13:29:39,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133485316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:39,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:39,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:39,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294497401] [2024-12-02 13:29:39,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:39,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:39,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:39,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:39,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:39,829 INFO L87 Difference]: Start difference. First operand 300 states and 418 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:39,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:39,888 INFO L93 Difference]: Finished difference Result 592 states and 825 transitions. [2024-12-02 13:29:39,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:39,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-12-02 13:29:39,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:39,891 INFO L225 Difference]: With dead ends: 592 [2024-12-02 13:29:39,891 INFO L226 Difference]: Without dead ends: 304 [2024-12-02 13:29:39,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:39,893 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 61 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:39,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 432 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:39,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-12-02 13:29:39,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302. [2024-12-02 13:29:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 257 states have (on average 1.3229571984435797) internal successors, (340), 259 states have internal predecessors, (340), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:29:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 420 transitions. [2024-12-02 13:29:39,920 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 420 transitions. Word has length 136 [2024-12-02 13:29:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:39,921 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 420 transitions. [2024-12-02 13:29:39,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 420 transitions. [2024-12-02 13:29:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 13:29:39,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:39,923 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:39,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:29:39,923 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:39,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:39,923 INFO L85 PathProgramCache]: Analyzing trace with hash 365283024, now seen corresponding path program 1 times [2024-12-02 13:29:39,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:39,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747951107] [2024-12-02 13:29:39,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:39,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 13:29:40,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747951107] [2024-12-02 13:29:40,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747951107] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:29:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694236953] [2024-12-02 13:29:40,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:40,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:29:40,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:40,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:29:40,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:29:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:40,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:29:40,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:40,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694236953] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:40,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:29:40,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 13:29:40,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572102403] [2024-12-02 13:29:40,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:40,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:29:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:40,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:29:40,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:29:40,434 INFO L87 Difference]: Start difference. First operand 302 states and 420 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:40,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:40,479 INFO L93 Difference]: Finished difference Result 604 states and 839 transitions. [2024-12-02 13:29:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:29:40,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-12-02 13:29:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:40,482 INFO L225 Difference]: With dead ends: 604 [2024-12-02 13:29:40,482 INFO L226 Difference]: Without dead ends: 314 [2024-12-02 13:29:40,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:29:40,483 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:40,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 719 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-12-02 13:29:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2024-12-02 13:29:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 260 states have (on average 1.3192307692307692) internal successors, (343), 262 states have internal predecessors, (343), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:29:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 423 transitions. [2024-12-02 13:29:40,504 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 423 transitions. Word has length 136 [2024-12-02 13:29:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:40,504 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 423 transitions. [2024-12-02 13:29:40,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 423 transitions. [2024-12-02 13:29:40,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:29:40,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:40,506 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:40,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:29:40,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:29:40,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:40,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1069777158, now seen corresponding path program 1 times [2024-12-02 13:29:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:40,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893523254] [2024-12-02 13:29:40,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:40,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:41,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:41,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893523254] [2024-12-02 13:29:41,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893523254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:41,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:41,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:29:41,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24476586] [2024-12-02 13:29:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:41,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:29:41,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:41,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:29:41,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:41,050 INFO L87 Difference]: Start difference. First operand 305 states and 423 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:41,360 INFO L93 Difference]: Finished difference Result 355 states and 489 transitions. [2024-12-02 13:29:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:29:41,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 13:29:41,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:41,362 INFO L225 Difference]: With dead ends: 355 [2024-12-02 13:29:41,362 INFO L226 Difference]: Without dead ends: 353 [2024-12-02 13:29:41,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:29:41,363 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 96 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:41,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 684 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:29:41,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-12-02 13:29:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 352. [2024-12-02 13:29:41,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 295 states have (on average 1.3016949152542372) internal successors, (384), 297 states have internal predecessors, (384), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 13:29:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 484 transitions. [2024-12-02 13:29:41,382 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 484 transitions. Word has length 137 [2024-12-02 13:29:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:41,383 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 484 transitions. [2024-12-02 13:29:41,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:41,383 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 484 transitions. [2024-12-02 13:29:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:29:41,384 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:41,384 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:41,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:29:41,384 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:41,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:41,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1071624200, now seen corresponding path program 1 times [2024-12-02 13:29:41,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:41,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786928382] [2024-12-02 13:29:41,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:41,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:41,477 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:41,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:29:41,581 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:29:41,582 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:29:41,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:29:41,587 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:41,633 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:29:41,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:29:41 BoogieIcfgContainer [2024-12-02 13:29:41,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:29:41,636 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:29:41,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:29:41,637 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:29:41,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:32" (3/4) ... [2024-12-02 13:29:41,639 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:29:41,640 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:29:41,641 INFO L158 Benchmark]: Toolchain (without parser) took 10382.48ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 117.5MB in the beginning and 310.3MB in the end (delta: -192.9MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-12-02 13:29:41,641 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 84.2MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:41,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.97ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 100.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:29:41,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.25ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 96.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:41,642 INFO L158 Benchmark]: Boogie Preprocessor took 50.03ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 93.6MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:29:41,642 INFO L158 Benchmark]: RCFGBuilder took 735.97ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 61.6MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 13:29:41,642 INFO L158 Benchmark]: TraceAbstraction took 9266.49ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 61.0MB in the beginning and 310.4MB in the end (delta: -249.4MB). Peak memory consumption was 162.9MB. Max. memory is 16.1GB. [2024-12-02 13:29:41,642 INFO L158 Benchmark]: Witness Printer took 3.67ms. Allocated memory is still 369.1MB. Free memory was 310.4MB in the beginning and 310.3MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:41,644 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 84.2MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.97ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 100.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.25ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 96.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.03ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 93.6MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 735.97ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 61.6MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9266.49ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 61.0MB in the beginning and 310.4MB in the end (delta: -249.4MB). Peak memory consumption was 162.9MB. Max. memory is 16.1GB. * Witness Printer took 3.67ms. Allocated memory is still 369.1MB. Free memory was 310.4MB in the beginning and 310.3MB in the end (delta: 49.3kB). 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 118, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 107. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 8, 0, 8, 1000, 1, 0, 0, 0, 4.575, 2.75, 128.5, -1000000000, 99999.25, 1, 50 }; [L57] unsigned char last_1_WrapperStruct00_var_1_5 = 1; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_5=1] [L122] isInitial = 1 [L123] FCALL initially() [L125] CALL updateLastVariables() [L115] EXPR WrapperStruct00.var_1_5 [L115] last_1_WrapperStruct00_var_1_5 = WrapperStruct00.var_1_5 [L125] RET updateLastVariables() [L126] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L90] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L91] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ushort() [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L93] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L94] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ushort() [L95] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L96] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L97] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L98] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L99] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L100] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L101] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L102] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L103] WrapperStruct00.var_1_10 = __VERIFIER_nondet_uchar() [L104] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L105] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L106] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L107] EXPR WrapperStruct00.var_1_13 [L107] EXPR WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L107] EXPR WrapperStruct00.var_1_13 [L107] EXPR WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L107] EXPR (WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L107] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L107] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L108] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L109] EXPR WrapperStruct00.var_1_14 [L109] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L109] EXPR WrapperStruct00.var_1_14 [L109] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L109] EXPR (WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L109] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L109] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L110] WrapperStruct00.var_1_18 = __VERIFIER_nondet_char() [L111] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_18 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_18 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L112] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_18 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L112] RET assume_abort_if_not(WrapperStruct00.var_1_18 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L126] RET updateVariables() [L127] CALL step() [L61] COND FALSE !(! last_1_WrapperStruct00_var_1_5) [L64] EXPR WrapperStruct00.var_1_4 [L64] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_4 [L66] EXPR WrapperStruct00.var_1_6 [L66] unsigned char stepLocal_0 = WrapperStruct00.var_1_6; [L67] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1, stepLocal_0=257] [L67] COND FALSE !(WrapperStruct00.var_1_2) [L76] EXPR WrapperStruct00.var_1_1 [L76] WrapperStruct00.var_1_15 = WrapperStruct00.var_1_1 [L77] EXPR WrapperStruct00.var_1_13 [L77] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_13 [L78] EXPR WrapperStruct00.var_1_18 [L78] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_18 [L79] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1, stepLocal_0=257] [L79] EXPR ((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L79] EXPR WrapperStruct00.var_1_15 [L79] EXPR ((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1, stepLocal_0=257] [L79] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1, stepLocal_0=257] [L79] COND FALSE !(((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) [L127] RET step() [L128] CALL, EXPR property() [L118] EXPR (! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) [L118] EXPR WrapperStruct00.var_1_1 [L118] EXPR WrapperStruct00.var_1_4 [L118] EXPR (! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR ((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1) [L118] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR ((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR (((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1) [L118] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR ((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L118] EXPR WrapperStruct00.var_1_15 [L118] EXPR ((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR (((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR (((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR ((((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_1)) [L118] EXPR WrapperStruct00.var_1_15 [L118] EXPR WrapperStruct00.var_1_1 [L118] EXPR ((((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR (((((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_16 == ((float) WrapperStruct00.var_1_13)) [L118] EXPR WrapperStruct00.var_1_16 [L118] EXPR WrapperStruct00.var_1_13 [L118] EXPR (((((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_16 == ((float) WrapperStruct00.var_1_13)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118] EXPR ((((((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_16 == ((float) WrapperStruct00.var_1_13))) && (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L118-L119] return ((((((! last_1_WrapperStruct00_var_1_5) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_2 ? ((WrapperStruct00.var_1_6 && ((WrapperStruct00.var_1_3 >= 16) || last_1_WrapperStruct00_var_1_5)) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_1) && WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_5 == ((unsigned char) WrapperStruct00.var_1_10))) : 1) : 1)) && ((((((WrapperStruct00.var_1_15) < 0 ) ? -(WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))) > WrapperStruct00.var_1_15) ? (((WrapperStruct00.var_1_15 / -5) >= ((WrapperStruct00.var_1_4 + WrapperStruct00.var_1_15) - ((((WrapperStruct00.var_1_1) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1) : (WrapperStruct00.var_1_3))))) ? (WrapperStruct00.var_1_11 == ((double) (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_16 == ((float) WrapperStruct00.var_1_13))) && (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_18)) ; [L128] RET, EXPR property() [L128] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 14, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 607 mSDsluCounter, 5803 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3884 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1010 IncrementalHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 1919 mSDtfsCounter, 1010 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 481 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=13, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 117 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2266 NumberOfCodeBlocks, 2266 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2113 ConstructedInterpolants, 0 QuantifiedInterpolants, 3097 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1438 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 7560/7680 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 13:29:41,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3e0774e78cf4ed6ba09a877be2127aeb0fe9129940fc78943597bbe0bd3d6c8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:29:43,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:29:43,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:29:43,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:29:43,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:29:43,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:29:43,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:29:43,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:29:43,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:29:43,714 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:29:43,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:29:43,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:29:43,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:29:43,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:29:43,714 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:29:43,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:29:43,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:29:43,716 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:29:43,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:43,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:43,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:29:43,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:29:43,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:29:43,718 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_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e0774e78cf4ed6ba09a877be2127aeb0fe9129940fc78943597bbe0bd3d6c8 [2024-12-02 13:29:43,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:29:43,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:29:43,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:29:43,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:29:43,965 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:29:43,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i [2024-12-02 13:29:46,626 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/8d37cd7dd/ec0169ffa4d64709af29ccb785d49d03/FLAG770e1d461 [2024-12-02 13:29:46,810 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:29:46,810 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i [2024-12-02 13:29:46,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/8d37cd7dd/ec0169ffa4d64709af29ccb785d49d03/FLAG770e1d461 [2024-12-02 13:29:46,831 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/data/8d37cd7dd/ec0169ffa4d64709af29ccb785d49d03 [2024-12-02 13:29:46,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:29:46,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:29:46,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:46,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:29:46,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:29:46,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:46" (1/1) ... [2024-12-02 13:29:46,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121d6288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:46, skipping insertion in model container [2024-12-02 13:29:46,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:46" (1/1) ... [2024-12-02 13:29:46,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:29:46,958 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_f742a30c-adba-4ec2-97d6-98c958125fe7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i[916,929] [2024-12-02 13:29:47,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:29:47,018 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:29:47,027 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_f742a30c-adba-4ec2-97d6-98c958125fe7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-96.i[916,929] [2024-12-02 13:29:47,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:29:47,091 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:29:47,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47 WrapperNode [2024-12-02 13:29:47,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:47,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:29:47,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:29:47,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:29:47,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,142 INFO L138 Inliner]: procedures = 40, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 476 [2024-12-02 13:29:47,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:29:47,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:29:47,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:29:47,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:29:47,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,176 INFO L175 MemorySlicer]: Split 128 memory accesses to 2 slices as follows [2, 126]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 34 writes are split as follows [0, 34]. [2024-12-02 13:29:47,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:29:47,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:29:47,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:29:47,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:29:47,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (1/1) ... [2024-12-02 13:29:47,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:47,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:47,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:47,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:29:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 13:29:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 13:29:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:29:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:29:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 13:29:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 13:29:47,381 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:29:47,382 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:29:48,663 INFO L? ?]: Removed 113 outVars from TransFormulas that were not future-live. [2024-12-02 13:29:48,663 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:29:48,673 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:29:48,673 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:29:48,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:48 BoogieIcfgContainer [2024-12-02 13:29:48,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:29:48,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:29:48,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:29:48,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:29:48,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:29:46" (1/3) ... [2024-12-02 13:29:48,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d886574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:48, skipping insertion in model container [2024-12-02 13:29:48,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:47" (2/3) ... [2024-12-02 13:29:48,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d886574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:48, skipping insertion in model container [2024-12-02 13:29:48,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:48" (3/3) ... [2024-12-02 13:29:48,681 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-96.i [2024-12-02 13:29:48,700 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:29:48,701 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-96.i that has 2 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:29:48,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:29:48,752 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;@4c08e6df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:29:48,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:29:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:48,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:48,766 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:48,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:48,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:48,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1336021733, now seen corresponding path program 1 times [2024-12-02 13:29:48,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:29:48,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309471114] [2024-12-02 13:29:48,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:48,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:48,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:29:48,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:29:48,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 13:29:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:49,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:29:49,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-12-02 13:29:49,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:49,176 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:29:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309471114] [2024-12-02 13:29:49,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309471114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:49,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:49,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:29:49,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353030321] [2024-12-02 13:29:49,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:49,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:29:49,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:29:49,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:29:49,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:29:49,203 INFO L87 Difference]: Start difference. First operand has 108 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:29:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:49,228 INFO L93 Difference]: Finished difference Result 209 states and 328 transitions. [2024-12-02 13:29:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:29:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-12-02 13:29:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:49,234 INFO L225 Difference]: With dead ends: 209 [2024-12-02 13:29:49,234 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 13:29:49,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:29:49,238 INFO L435 NwaCegarLoop]: 152 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, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:49,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 13:29:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 13:29:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 152 transitions. [2024-12-02 13:29:49,277 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 152 transitions. Word has length 131 [2024-12-02 13:29:49,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:49,277 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 152 transitions. [2024-12-02 13:29:49,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:29:49,277 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 152 transitions. [2024-12-02 13:29:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:49,280 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:49,280 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:49,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 13:29:49,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:49,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:49,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1168156737, now seen corresponding path program 1 times [2024-12-02 13:29:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:29:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807451917] [2024-12-02 13:29:49,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:49,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:49,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:29:49,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:29:49,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 13:29:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:49,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:49,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:49,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:49,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:29:49,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807451917] [2024-12-02 13:29:49,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807451917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:49,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:49,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408876808] [2024-12-02 13:29:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:49,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:29:49,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:49,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:49,902 INFO L87 Difference]: Start difference. First operand 104 states and 152 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:49,983 INFO L93 Difference]: Finished difference Result 210 states and 308 transitions. [2024-12-02 13:29:49,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:29:49,984 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:49,986 INFO L225 Difference]: With dead ends: 210 [2024-12-02 13:29:49,986 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 13:29:49,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:49,987 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 572 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 [2024-12-02 13:29:49,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 572 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:29:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 13:29:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-12-02 13:29:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 156 transitions. [2024-12-02 13:29:49,998 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 156 transitions. Word has length 131 [2024-12-02 13:29:50,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:50,000 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 156 transitions. [2024-12-02 13:29:50,000 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:50,000 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 156 transitions. [2024-12-02 13:29:50,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:50,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:50,002 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:50,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-12-02 13:29:50,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:50,203 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:50,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:50,203 INFO L85 PathProgramCache]: Analyzing trace with hash -488098367, now seen corresponding path program 1 times [2024-12-02 13:29:50,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:29:50,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575701400] [2024-12-02 13:29:50,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:50,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:29:50,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:29:50,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 13:29:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:50,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:29:50,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:50,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:50,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:29:50,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575701400] [2024-12-02 13:29:50,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575701400] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:50,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:50,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:29:50,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036727664] [2024-12-02 13:29:50,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:50,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:29:50,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:29:50,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:29:50,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:50,563 INFO L87 Difference]: Start difference. First operand 108 states and 156 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:50,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:50,760 INFO L93 Difference]: Finished difference Result 216 states and 313 transitions. [2024-12-02 13:29:50,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:29:50,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:50,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:50,762 INFO L225 Difference]: With dead ends: 216 [2024-12-02 13:29:50,762 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 13:29:50,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:50,763 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 705 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 [2024-12-02 13:29:50,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 705 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:29:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 13:29:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-12-02 13:29:50,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2024-12-02 13:29:50,773 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 131 [2024-12-02 13:29:50,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:50,774 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2024-12-02 13:29:50,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:50,774 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2024-12-02 13:29:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:50,776 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:50,776 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:50,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 13:29:50,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:50,977 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:50,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:50,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1286908995, now seen corresponding path program 1 times [2024-12-02 13:29:50,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:29:50,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693570420] [2024-12-02 13:29:50,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:50,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:50,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:29:50,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:29:50,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 13:29:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:51,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:29:51,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:51,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:51,315 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:29:51,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693570420] [2024-12-02 13:29:51,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693570420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:51,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:51,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:29:51,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901130232] [2024-12-02 13:29:51,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:51,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:29:51,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:29:51,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:29:51,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:29:51,317 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:51,495 INFO L93 Difference]: Finished difference Result 220 states and 317 transitions. [2024-12-02 13:29:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:29:51,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:51,497 INFO L225 Difference]: With dead ends: 220 [2024-12-02 13:29:51,498 INFO L226 Difference]: Without dead ends: 113 [2024-12-02 13:29:51,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:29:51,499 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 839 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 [2024-12-02 13:29:51,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 839 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:29:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-12-02 13:29:51,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-12-02 13:29:51,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 160 transitions. [2024-12-02 13:29:51,508 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 160 transitions. Word has length 131 [2024-12-02 13:29:51,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:51,508 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 160 transitions. [2024-12-02 13:29:51,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:51,509 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 160 transitions. [2024-12-02 13:29:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:51,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:51,510 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:51,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 13:29:51,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:51,711 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:51,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1288756037, now seen corresponding path program 1 times [2024-12-02 13:29:51,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:29:51,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462372978] [2024-12-02 13:29:51,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:51,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:51,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:29:51,714 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:29:51,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 13:29:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:52,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:29:52,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:52,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-12-02 13:29:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:29:52,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:29:52,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:29:52,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462372978] [2024-12-02 13:29:52,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462372978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:52,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:52,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:29:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358757143] [2024-12-02 13:29:52,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:52,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:29:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:29:52,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:29:52,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:29:52,101 INFO L87 Difference]: Start difference. First operand 112 states and 160 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:52,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:52,133 INFO L93 Difference]: Finished difference Result 221 states and 317 transitions. [2024-12-02 13:29:52,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:29:52,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 13:29:52,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:52,135 INFO L225 Difference]: With dead ends: 221 [2024-12-02 13:29:52,135 INFO L226 Difference]: Without dead ends: 112 [2024-12-02 13:29:52,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:29:52,137 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:52,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:29:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-12-02 13:29:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-12-02 13:29:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 94 states have (on average 1.351063829787234) internal successors, (127), 94 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:29:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 159 transitions. [2024-12-02 13:29:52,145 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 159 transitions. Word has length 131 [2024-12-02 13:29:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:52,145 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 159 transitions. [2024-12-02 13:29:52,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:29:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 159 transitions. [2024-12-02 13:29:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:29:52,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:52,147 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:52,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 13:29:52,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:52,348 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:52,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:52,348 INFO L85 PathProgramCache]: Analyzing trace with hash -400187705, now seen corresponding path program 1 times [2024-12-02 13:29:52,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:29:52,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446249233] [2024-12-02 13:29:52,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:52,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:29:52,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:29:52,351 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:29:52,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 13:29:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:52,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 13:29:52,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:52,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:29:52,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:29:52,738 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 [2024-12-02 13:29:52,823 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 [2024-12-02 13:29:52,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2024-12-02 13:29:56,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:29:56,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 50 [2024-12-02 13:30:03,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:03,219 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 55 treesize of output 63 [2024-12-02 13:30:03,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:03,655 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 70 treesize of output 84 [2024-12-02 13:30:03,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:03,853 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 107 treesize of output 98 [2024-12-02 13:30:04,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:04,152 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 129 treesize of output 57 [2024-12-02 13:30:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-12-02 13:30:04,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:04,211 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:04,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446249233] [2024-12-02 13:30:04,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446249233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:04,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:04,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:30:04,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760872113] [2024-12-02 13:30:04,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:04,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:30:04,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:04,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:30:04,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=55, Unknown=3, NotChecked=0, Total=90 [2024-12-02 13:30:04,213 INFO L87 Difference]: Start difference. First operand 112 states and 159 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-12-02 13:30:09,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:09,501 INFO L93 Difference]: Finished difference Result 294 states and 416 transitions. [2024-12-02 13:30:09,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:30:09,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 131 [2024-12-02 13:30:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:09,504 INFO L225 Difference]: With dead ends: 294 [2024-12-02 13:30:09,504 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 13:30:09,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=50, Invalid=79, Unknown=3, NotChecked=0, Total=132 [2024-12-02 13:30:09,505 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 342 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:09,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 418 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:30:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 13:30:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2024-12-02 13:30:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.3647798742138364) internal successors, (217), 160 states have internal predecessors, (217), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:30:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 257 transitions. [2024-12-02 13:30:09,528 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 257 transitions. Word has length 131 [2024-12-02 13:30:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:09,528 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 257 transitions. [2024-12-02 13:30:09,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-12-02 13:30:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 257 transitions. [2024-12-02 13:30:09,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 13:30:09,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:09,530 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:09,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 13:30:09,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:09,731 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:09,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:09,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1788294046, now seen corresponding path program 1 times [2024-12-02 13:30:09,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:09,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628252701] [2024-12-02 13:30:09,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:09,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:09,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:09,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:09,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 13:30:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:09,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:30:09,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:09,986 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:09,986 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628252701] [2024-12-02 13:30:09,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628252701] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:30:09,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026372129] [2024-12-02 13:30:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:09,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:30:09,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:09,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:30:09,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:30:09,988 INFO L87 Difference]: Start difference. First operand 182 states and 257 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:10,535 INFO L93 Difference]: Finished difference Result 399 states and 562 transitions. [2024-12-02 13:30:10,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:30:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 13:30:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:10,539 INFO L225 Difference]: With dead ends: 399 [2024-12-02 13:30:10,539 INFO L226 Difference]: Without dead ends: 220 [2024-12-02 13:30:10,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:30:10,540 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 65 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:10,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 353 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:30:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-12-02 13:30:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 182. [2024-12-02 13:30:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 160 states have internal predecessors, (216), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:30:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2024-12-02 13:30:10,563 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 133 [2024-12-02 13:30:10,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:10,564 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2024-12-02 13:30:10,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2024-12-02 13:30:10,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 13:30:10,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:10,566 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:10,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 13:30:10,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:10,766 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:10,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -748412699, now seen corresponding path program 1 times [2024-12-02 13:30:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444982224] [2024-12-02 13:30:10,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:10,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:10,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:10,769 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:10,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 13:30:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:11,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:30:11,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:11,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:11,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:11,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444982224] [2024-12-02 13:30:11,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444982224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:11,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:11,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:11,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869707228] [2024-12-02 13:30:11,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:11,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:11,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:11,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:11,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:11,033 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:11,077 INFO L93 Difference]: Finished difference Result 367 states and 517 transitions. [2024-12-02 13:30:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:30:11,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 13:30:11,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:11,079 INFO L225 Difference]: With dead ends: 367 [2024-12-02 13:30:11,079 INFO L226 Difference]: Without dead ends: 188 [2024-12-02 13:30:11,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:11,080 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:11,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 575 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-12-02 13:30:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-12-02 13:30:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 165 states have (on average 1.3454545454545455) internal successors, (222), 166 states have internal predecessors, (222), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:30:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 262 transitions. [2024-12-02 13:30:11,101 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 262 transitions. Word has length 133 [2024-12-02 13:30:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:11,101 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 262 transitions. [2024-12-02 13:30:11,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 262 transitions. [2024-12-02 13:30:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 13:30:11,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:11,103 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:11,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 13:30:11,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:11,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:11,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash 984855584, now seen corresponding path program 1 times [2024-12-02 13:30:11,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:11,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335168671] [2024-12-02 13:30:11,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:11,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:11,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:11,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:11,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 13:30:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:11,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:30:11,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:11,574 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:11,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:11,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:11,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335168671] [2024-12-02 13:30:11,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335168671] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:11,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:11,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:30:11,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566625095] [2024-12-02 13:30:11,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:11,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:30:11,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:11,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:30:11,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:30:11,576 INFO L87 Difference]: Start difference. First operand 188 states and 262 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:11,611 INFO L93 Difference]: Finished difference Result 370 states and 515 transitions. [2024-12-02 13:30:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:30:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 13:30:11,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:11,612 INFO L225 Difference]: With dead ends: 370 [2024-12-02 13:30:11,613 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 13:30:11,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:30:11,613 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 63 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:11,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 302 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 13:30:11,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2024-12-02 13:30:11,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.3396226415094339) internal successors, (213), 160 states have internal predecessors, (213), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:30:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 253 transitions. [2024-12-02 13:30:11,624 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 253 transitions. Word has length 133 [2024-12-02 13:30:11,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:11,624 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 253 transitions. [2024-12-02 13:30:11,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 253 transitions. [2024-12-02 13:30:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 13:30:11,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:11,626 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:11,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 13:30:11,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:11,826 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:11,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1545476357, now seen corresponding path program 1 times [2024-12-02 13:30:11,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:11,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725374170] [2024-12-02 13:30:11,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:11,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:11,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:11,828 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:11,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 13:30:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:12,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 13:30:12,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:12,155 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 105 treesize of output 104 [2024-12-02 13:30:12,343 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 163 treesize of output 143 [2024-12-02 13:30:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:12,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:12,598 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:12,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725374170] [2024-12-02 13:30:12,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725374170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:12,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:12,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:30:12,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961393004] [2024-12-02 13:30:12,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:12,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:30:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:12,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:30:12,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:12,599 INFO L87 Difference]: Start difference. First operand 182 states and 253 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:14,415 INFO L93 Difference]: Finished difference Result 472 states and 656 transitions. [2024-12-02 13:30:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:14,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-12-02 13:30:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:14,416 INFO L225 Difference]: With dead ends: 472 [2024-12-02 13:30:14,416 INFO L226 Difference]: Without dead ends: 293 [2024-12-02 13:30:14,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:14,417 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 79 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:14,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 366 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 13:30:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-12-02 13:30:14,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 236. [2024-12-02 13:30:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 196 states have internal predecessors, (255), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 13:30:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2024-12-02 13:30:14,449 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 135 [2024-12-02 13:30:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:14,449 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2024-12-02 13:30:14,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2024-12-02 13:30:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 13:30:14,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:14,451 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:14,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 13:30:14,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:14,651 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:14,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash -254156006, now seen corresponding path program 1 times [2024-12-02 13:30:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:14,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643350128] [2024-12-02 13:30:14,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:14,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:14,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:14,653 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:14,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 13:30:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:14,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:30:14,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:14,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:14,940 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:14,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643350128] [2024-12-02 13:30:14,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643350128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:14,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:14,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:30:14,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030468513] [2024-12-02 13:30:14,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:14,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:30:14,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:14,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:30:14,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:14,942 INFO L87 Difference]: Start difference. First operand 236 states and 327 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:15,021 INFO L93 Difference]: Finished difference Result 418 states and 580 transitions. [2024-12-02 13:30:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:15,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-12-02 13:30:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:15,023 INFO L225 Difference]: With dead ends: 418 [2024-12-02 13:30:15,024 INFO L226 Difference]: Without dead ends: 239 [2024-12-02 13:30:15,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:15,024 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 60 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:15,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 429 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-12-02 13:30:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 237. [2024-12-02 13:30:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 196 states have (on average 1.3061224489795917) internal successors, (256), 197 states have internal predecessors, (256), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 13:30:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 328 transitions. [2024-12-02 13:30:15,058 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 328 transitions. Word has length 136 [2024-12-02 13:30:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:15,059 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 328 transitions. [2024-12-02 13:30:15,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 328 transitions. [2024-12-02 13:30:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 13:30:15,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:15,060 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:15,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 13:30:15,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:15,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:15,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:15,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1275224360, now seen corresponding path program 1 times [2024-12-02 13:30:15,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:15,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990424118] [2024-12-02 13:30:15,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:15,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:15,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:15,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:15,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 13:30:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:15,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:30:15,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:15,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:15,570 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:15,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990424118] [2024-12-02 13:30:15,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990424118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:15,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:30:15,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556624201] [2024-12-02 13:30:15,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:15,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:30:15,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:15,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:30:15,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:30:15,571 INFO L87 Difference]: Start difference. First operand 237 states and 328 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:15,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:15,647 INFO L93 Difference]: Finished difference Result 425 states and 589 transitions. [2024-12-02 13:30:15,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:30:15,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-12-02 13:30:15,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:15,649 INFO L225 Difference]: With dead ends: 425 [2024-12-02 13:30:15,649 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 13:30:15,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:30:15,650 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:15,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 714 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 13:30:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 239. [2024-12-02 13:30:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 198 states have (on average 1.303030303030303) internal successors, (258), 199 states have internal predecessors, (258), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 13:30:15,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 330 transitions. [2024-12-02 13:30:15,681 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 330 transitions. Word has length 136 [2024-12-02 13:30:15,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:15,682 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 330 transitions. [2024-12-02 13:30:15,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 330 transitions. [2024-12-02 13:30:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:30:15,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:15,683 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:15,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 13:30:15,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:15,884 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:15,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1530194232, now seen corresponding path program 1 times [2024-12-02 13:30:15,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:15,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315493520] [2024-12-02 13:30:15,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:15,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:15,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:15,886 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:15,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-12-02 13:30:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:16,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:30:16,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:16,215 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 20 treesize of output 8 [2024-12-02 13:30:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:16,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:16,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:16,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315493520] [2024-12-02 13:30:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315493520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:16,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:16,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:16,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159780877] [2024-12-02 13:30:16,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:16,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:16,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:16,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:16,231 INFO L87 Difference]: Start difference. First operand 239 states and 330 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:18,618 INFO L93 Difference]: Finished difference Result 429 states and 596 transitions. [2024-12-02 13:30:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:30:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 13:30:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:18,619 INFO L225 Difference]: With dead ends: 429 [2024-12-02 13:30:18,619 INFO L226 Difference]: Without dead ends: 247 [2024-12-02 13:30:18,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:30:18,620 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 121 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:18,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 489 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 13:30:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-12-02 13:30:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 239. [2024-12-02 13:30:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 198 states have (on average 1.292929292929293) internal successors, (256), 199 states have internal predecessors, (256), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 13:30:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 328 transitions. [2024-12-02 13:30:18,650 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 328 transitions. Word has length 137 [2024-12-02 13:30:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:18,650 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 328 transitions. [2024-12-02 13:30:18,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 328 transitions. [2024-12-02 13:30:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:30:18,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:18,651 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:18,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-12-02 13:30:18,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:18,852 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:18,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1753655814, now seen corresponding path program 1 times [2024-12-02 13:30:18,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:18,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810750622] [2024-12-02 13:30:18,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:18,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:18,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:18,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:18,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-12-02 13:30:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:19,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:30:19,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:19,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:30:19,261 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 19 treesize of output 19 [2024-12-02 13:30:19,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:19,291 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 59 treesize of output 53 [2024-12-02 13:30:19,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:19,669 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 97 treesize of output 39 [2024-12-02 13:30:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:30:19,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:19,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810750622] [2024-12-02 13:30:19,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810750622] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:19,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:19,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:30:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209261141] [2024-12-02 13:30:19,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:19,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:30:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:19,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:30:19,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:30:19,710 INFO L87 Difference]: Start difference. First operand 239 states and 328 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:23,116 INFO L93 Difference]: Finished difference Result 247 states and 335 transitions. [2024-12-02 13:30:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:30:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 13:30:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:23,118 INFO L225 Difference]: With dead ends: 247 [2024-12-02 13:30:23,118 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 13:30:23,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:30:23,118 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 57 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:23,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 658 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 13:30:23,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 13:30:23,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242. [2024-12-02 13:30:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 201 states have (on average 1.2885572139303483) internal successors, (259), 202 states have internal predecessors, (259), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 13:30:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 331 transitions. [2024-12-02 13:30:23,149 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 331 transitions. Word has length 137 [2024-12-02 13:30:23,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:23,150 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 331 transitions. [2024-12-02 13:30:23,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:30:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 331 transitions. [2024-12-02 13:30:23,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:30:23,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:23,151 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:23,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-12-02 13:30:23,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:23,351 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:23,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1755502856, now seen corresponding path program 1 times [2024-12-02 13:30:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:23,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180306936] [2024-12-02 13:30:23,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:23,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:30:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:23,353 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:30:23,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 13:30:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:23,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 13:30:23,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:24,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-12-02 13:30:24,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:24,717 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 148 treesize of output 73 [2024-12-02 13:30:28,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:28,803 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 117 treesize of output 92 [2024-12-02 13:30:29,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:29,338 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 113 [2024-12-02 13:30:29,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:29,604 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 248 treesize of output 179 [2024-12-02 13:30:40,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:30:40,258 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 387 treesize of output 155 [2024-12-02 13:30:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 13:30:41,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:41,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180306936] [2024-12-02 13:30:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180306936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:41,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:41,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 13:30:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513636764] [2024-12-02 13:30:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:41,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:30:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:41,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:30:41,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=114, Unknown=1, NotChecked=0, Total=156 [2024-12-02 13:30:41,711 INFO L87 Difference]: Start difference. First operand 242 states and 331 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 13:30:48,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:30:56,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:00,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:04,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:08,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:12,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:19,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:24,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:31:38,677 WARN L539 Checker$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] [2024-12-02 13:31:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:45,192 INFO L93 Difference]: Finished difference Result 699 states and 938 transitions. [2024-12-02 13:31:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:31:45,193 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 137 [2024-12-02 13:31:45,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:45,195 INFO L225 Difference]: With dead ends: 699 [2024-12-02 13:31:45,195 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 13:31:45,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=64, Invalid=174, Unknown=2, NotChecked=0, Total=240 [2024-12-02 13:31:45,196 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 520 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 37 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:45,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 788 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1126 Invalid, 9 Unknown, 0 Unchecked, 55.5s Time] [2024-12-02 13:31:45,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 13:31:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 491. [2024-12-02 13:31:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 419 states have (on average 1.2935560859188544) internal successors, (542), 422 states have internal predecessors, (542), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:31:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 662 transitions. [2024-12-02 13:31:45,234 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 662 transitions. Word has length 137 [2024-12-02 13:31:45,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:45,235 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 662 transitions. [2024-12-02 13:31:45,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 13:31:45,235 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 662 transitions. [2024-12-02 13:31:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:31:45,236 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:45,236 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:45,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-12-02 13:31:45,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:45,436 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:45,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:45,436 INFO L85 PathProgramCache]: Analyzing trace with hash -764457078, now seen corresponding path program 1 times [2024-12-02 13:31:45,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:31:45,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313721007] [2024-12-02 13:31:45,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:45,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:45,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:31:45,439 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:31:45,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 13:31:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:45,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 13:31:45,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:31:45,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-12-02 13:31:45,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:31:45,843 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 59 treesize of output 53 [2024-12-02 13:31:46,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:31:46,548 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 89 treesize of output 35 [2024-12-02 13:31:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:31:46,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:31:46,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:31:46,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313721007] [2024-12-02 13:31:46,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313721007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:46,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:31:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160502778] [2024-12-02 13:31:46,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:46,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:31:46,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:31:46,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:31:46,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:31:46,647 INFO L87 Difference]: Start difference. First operand 491 states and 662 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:31:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:50,781 INFO L93 Difference]: Finished difference Result 900 states and 1216 transitions. [2024-12-02 13:31:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:31:50,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 13:31:50,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:50,784 INFO L225 Difference]: With dead ends: 900 [2024-12-02 13:31:50,784 INFO L226 Difference]: Without dead ends: 495 [2024-12-02 13:31:50,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:31:50,785 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 102 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:50,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 457 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 13:31:50,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-12-02 13:31:50,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 491. [2024-12-02 13:31:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 419 states have (on average 1.2863961813842482) internal successors, (539), 422 states have internal predecessors, (539), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:31:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 659 transitions. [2024-12-02 13:31:50,821 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 659 transitions. Word has length 137 [2024-12-02 13:31:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:50,822 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 659 transitions. [2024-12-02 13:31:50,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:31:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 659 transitions. [2024-12-02 13:31:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:31:50,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:50,823 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:50,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 13:31:51,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:51,023 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:51,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash -84398708, now seen corresponding path program 1 times [2024-12-02 13:31:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:31:51,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577528993] [2024-12-02 13:31:51,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:51,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:51,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:31:51,027 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:31:51,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 13:31:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:51,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:31:51,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:31:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:31:51,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:31:51,414 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:31:51,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577528993] [2024-12-02 13:31:51,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577528993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:51,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:51,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921633605] [2024-12-02 13:31:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:51,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:51,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:31:51,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:51,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:51,416 INFO L87 Difference]: Start difference. First operand 491 states and 659 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:31:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:51,594 INFO L93 Difference]: Finished difference Result 911 states and 1227 transitions. [2024-12-02 13:31:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:31:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 13:31:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:51,597 INFO L225 Difference]: With dead ends: 911 [2024-12-02 13:31:51,597 INFO L226 Difference]: Without dead ends: 506 [2024-12-02 13:31:51,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:51,599 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:51,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 572 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:31:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-12-02 13:31:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-12-02 13:31:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 434 states have (on average 1.2764976958525345) internal successors, (554), 437 states have internal predecessors, (554), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:31:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 674 transitions. [2024-12-02 13:31:51,639 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 674 transitions. Word has length 137 [2024-12-02 13:31:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:51,639 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 674 transitions. [2024-12-02 13:31:51,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:31:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 674 transitions. [2024-12-02 13:31:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:31:51,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:51,641 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:51,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-12-02 13:31:51,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:51,841 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:51,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:51,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1957326790, now seen corresponding path program 1 times [2024-12-02 13:31:51,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:31:51,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66202645] [2024-12-02 13:31:51,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:51,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:31:51,844 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:31:51,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-12-02 13:31:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:52,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:31:52,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:31:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 13:31:52,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:31:52,186 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:31:52,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66202645] [2024-12-02 13:31:52,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66202645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:52,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:52,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:31:52,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496051347] [2024-12-02 13:31:52,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:52,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:31:52,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:31:52,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:31:52,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:52,187 INFO L87 Difference]: Start difference. First operand 506 states and 674 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:31:52,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:52,376 INFO L93 Difference]: Finished difference Result 945 states and 1262 transitions. [2024-12-02 13:31:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:52,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-12-02 13:31:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:52,380 INFO L225 Difference]: With dead ends: 945 [2024-12-02 13:31:52,380 INFO L226 Difference]: Without dead ends: 506 [2024-12-02 13:31:52,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:52,382 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:52,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 436 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:31:52,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-12-02 13:31:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-12-02 13:31:52,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 434 states have (on average 1.271889400921659) internal successors, (552), 437 states have internal predecessors, (552), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:31:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 672 transitions. [2024-12-02 13:31:52,439 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 672 transitions. Word has length 137 [2024-12-02 13:31:52,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:52,439 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 672 transitions. [2024-12-02 13:31:52,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:31:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 672 transitions. [2024-12-02 13:31:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 13:31:52,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:52,440 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:52,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-12-02 13:31:52,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:52,641 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:52,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1012110604, now seen corresponding path program 1 times [2024-12-02 13:31:52,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:31:52,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197109043] [2024-12-02 13:31:52,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:52,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:31:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:31:52,644 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:31:52,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 13:31:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:52,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:31:52,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:31:53,037 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 22 treesize of output 10 [2024-12-02 13:31:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:31:53,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:31:53,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:31:53,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197109043] [2024-12-02 13:31:53,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197109043] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:53,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:53,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:53,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65793866] [2024-12-02 13:31:53,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:53,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:53,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:31:53,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:53,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:53,135 INFO L87 Difference]: Start difference. First operand 506 states and 672 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:31:59,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:32:03,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:32:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:05,357 INFO L93 Difference]: Finished difference Result 1122 states and 1477 transitions. [2024-12-02 13:32:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:32:05,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-12-02 13:32:05,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:05,361 INFO L225 Difference]: With dead ends: 1122 [2024-12-02 13:32:05,361 INFO L226 Difference]: Without dead ends: 702 [2024-12-02 13:32:05,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:32:05,362 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 57 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:05,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 526 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-12-02 13:32:05,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-12-02 13:32:05,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 698. [2024-12-02 13:32:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 602 states have (on average 1.2408637873754154) internal successors, (747), 609 states have internal predecessors, (747), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:32:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 907 transitions. [2024-12-02 13:32:05,432 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 907 transitions. Word has length 138 [2024-12-02 13:32:05,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:05,432 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 907 transitions. [2024-12-02 13:32:05,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:32:05,433 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 907 transitions. [2024-12-02 13:32:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 13:32:05,433 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:05,433 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:05,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-02 13:32:05,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:32:05,634 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:05,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1475570112, now seen corresponding path program 1 times [2024-12-02 13:32:05,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:32:05,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177997431] [2024-12-02 13:32:05,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:05,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:32:05,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:32:05,636 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:32:05,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-12-02 13:32:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:06,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:32:06,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:32:06,154 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 29 treesize of output 11 [2024-12-02 13:32:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:32:06,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:32:06,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:32:06,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177997431] [2024-12-02 13:32:06,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177997431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:06,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:06,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:32:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249533633] [2024-12-02 13:32:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:06,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:32:06,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:32:06,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:32:06,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:32:06,230 INFO L87 Difference]: Start difference. First operand 698 states and 907 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:32:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:08,137 INFO L93 Difference]: Finished difference Result 1250 states and 1621 transitions. [2024-12-02 13:32:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:32:08,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-12-02 13:32:08,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:08,140 INFO L225 Difference]: With dead ends: 1250 [2024-12-02 13:32:08,141 INFO L226 Difference]: Without dead ends: 638 [2024-12-02 13:32:08,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:32:08,142 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:08,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 442 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 13:32:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-12-02 13:32:08,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2024-12-02 13:32:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 542 states have (on average 1.2177121771217712) internal successors, (660), 549 states have internal predecessors, (660), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:32:08,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 820 transitions. [2024-12-02 13:32:08,210 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 820 transitions. Word has length 139 [2024-12-02 13:32:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:08,210 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 820 transitions. [2024-12-02 13:32:08,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:32:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 820 transitions. [2024-12-02 13:32:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 13:32:08,211 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:08,212 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:08,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-02 13:32:08,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:32:08,412 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:08,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:08,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1602251652, now seen corresponding path program 1 times [2024-12-02 13:32:08,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:32:08,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237054163] [2024-12-02 13:32:08,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:08,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:32:08,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:32:08,414 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:32:08,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 13:32:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:08,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:32:08,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:32:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 13:32:08,912 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:32:08,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:32:08,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237054163] [2024-12-02 13:32:08,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237054163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:08,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:08,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:32:08,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357879027] [2024-12-02 13:32:08,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:08,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:32:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:32:08,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:32:08,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:32:08,914 INFO L87 Difference]: Start difference. First operand 638 states and 820 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:32:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:09,728 INFO L93 Difference]: Finished difference Result 1232 states and 1579 transitions. [2024-12-02 13:32:09,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:32:09,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2024-12-02 13:32:09,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:09,731 INFO L225 Difference]: With dead ends: 1232 [2024-12-02 13:32:09,731 INFO L226 Difference]: Without dead ends: 658 [2024-12-02 13:32:09,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:32:09,733 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 1 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:09,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 583 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:32:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-12-02 13:32:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 638. [2024-12-02 13:32:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 542 states have (on average 1.2140221402214022) internal successors, (658), 549 states have internal predecessors, (658), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:32:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 818 transitions. [2024-12-02 13:32:09,803 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 818 transitions. Word has length 139 [2024-12-02 13:32:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:09,804 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 818 transitions. [2024-12-02 13:32:09,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:32:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 818 transitions. [2024-12-02 13:32:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 13:32:09,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:09,805 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:09,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 13:32:10,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:32:10,005 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:10,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:10,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1041551874, now seen corresponding path program 1 times [2024-12-02 13:32:10,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:32:10,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242999388] [2024-12-02 13:32:10,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:10,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:32:10,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:32:10,008 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:32:10,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 13:32:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:10,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 13:32:10,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:32:11,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:32:12,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:32:12,584 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 141 treesize of output 57 [2024-12-02 13:32:13,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:32:13,010 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 130 treesize of output 57 [2024-12-02 13:32:13,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:32:13,668 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 130 treesize of output 75 [2024-12-02 13:32:14,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:32:14,060 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 244 treesize of output 130 [2024-12-02 13:32:29,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:32:29,470 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 383 treesize of output 127 [2024-12-02 13:32:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 195 proven. 9 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 13:32:30,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:32:42,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:32:42,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242999388] [2024-12-02 13:32:42,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242999388] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:32:42,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1373319315] [2024-12-02 13:32:42,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:42,293 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:32:42,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:32:42,294 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:32:42,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-12-02 13:32:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:43,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 13:32:43,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:32:45,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 13:33:00,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:33:00,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 61 [2024-12-02 13:33:01,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:33:01,636 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 118 treesize of output 61 [2024-12-02 13:33:03,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:33:03,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 120 treesize of output 77 [2024-12-02 13:33:04,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:33:04,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 206 treesize of output 124 [2024-12-02 13:33:21,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:33:21,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 101 [2024-12-02 13:33:21,882 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 195 proven. 9 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 13:33:21,882 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:33:31,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1373319315] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:33:31,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:33:31,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2024-12-02 13:33:31,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146339444] [2024-12-02 13:33:31,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:33:31,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 13:33:31,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:33:31,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 13:33:31,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=553, Unknown=1, NotChecked=0, Total=702 [2024-12-02 13:33:31,502 INFO L87 Difference]: Start difference. First operand 638 states and 818 transitions. Second operand has 25 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 6 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 4 states have call predecessors, (32), 6 states have call successors, (32) [2024-12-02 13:34:07,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:07,972 INFO L93 Difference]: Finished difference Result 1217 states and 1550 transitions. [2024-12-02 13:34:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:34:07,973 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 6 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 4 states have call predecessors, (32), 6 states have call successors, (32) Word has length 139 [2024-12-02 13:34:07,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:07,975 INFO L225 Difference]: With dead ends: 1217 [2024-12-02 13:34:07,975 INFO L226 Difference]: Without dead ends: 665 [2024-12-02 13:34:07,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 311 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 39.8s TimeCoverageRelationStatistics Valid=292, Invalid=967, Unknown=1, NotChecked=0, Total=1260 [2024-12-02 13:34:07,977 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 580 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:07,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1021 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 25.6s Time] [2024-12-02 13:34:07,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-12-02 13:34:08,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 646. [2024-12-02 13:34:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 548 states have (on average 1.2080291970802919) internal successors, (662), 555 states have internal predecessors, (662), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:34:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 822 transitions. [2024-12-02 13:34:08,037 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 822 transitions. Word has length 139 [2024-12-02 13:34:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:08,037 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 822 transitions. [2024-12-02 13:34:08,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 6 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 4 states have call predecessors, (32), 6 states have call successors, (32) [2024-12-02 13:34:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 822 transitions. [2024-12-02 13:34:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 13:34:08,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:08,038 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:34:08,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-12-02 13:34:08,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 13:34:08,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:08,439 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:08,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1937366605, now seen corresponding path program 1 times [2024-12-02 13:34:08,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:34:08,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118495665] [2024-12-02 13:34:08,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:08,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:08,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:34:08,441 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:34:08,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 13:34:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:08,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:34:08,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:34:09,096 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 29 treesize of output 11 [2024-12-02 13:34:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:34:09,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:34:09,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:34:09,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118495665] [2024-12-02 13:34:09,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118495665] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:09,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:09,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:34:09,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144715540] [2024-12-02 13:34:09,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:09,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:34:09,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:34:09,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:34:09,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:34:09,176 INFO L87 Difference]: Start difference. First operand 646 states and 822 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:12,784 INFO L93 Difference]: Finished difference Result 1156 states and 1470 transitions. [2024-12-02 13:34:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:34:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 140 [2024-12-02 13:34:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:12,787 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 13:34:12,787 INFO L226 Difference]: Without dead ends: 600 [2024-12-02 13:34:12,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:34:12,788 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 108 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:12,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 573 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 13:34:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-12-02 13:34:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 584. [2024-12-02 13:34:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 486 states have (on average 1.1646090534979423) internal successors, (566), 493 states have internal predecessors, (566), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:34:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 726 transitions. [2024-12-02 13:34:12,847 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 726 transitions. Word has length 140 [2024-12-02 13:34:12,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:12,847 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 726 transitions. [2024-12-02 13:34:12,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:12,847 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 726 transitions. [2024-12-02 13:34:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 13:34:12,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:12,848 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:34:12,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-12-02 13:34:13,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:13,049 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:13,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1764938673, now seen corresponding path program 1 times [2024-12-02 13:34:13,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:34:13,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769053954] [2024-12-02 13:34:13,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:13,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:13,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:34:13,051 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:34:13,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 13:34:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:13,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:34:13,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:34:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:34:13,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:34:13,388 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:34:13,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769053954] [2024-12-02 13:34:13,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769053954] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:13,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:13,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:34:13,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030820341] [2024-12-02 13:34:13,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:13,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:34:13,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:34:13,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:34:13,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:34:13,389 INFO L87 Difference]: Start difference. First operand 584 states and 726 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:13,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:13,473 INFO L93 Difference]: Finished difference Result 1078 states and 1340 transitions. [2024-12-02 13:34:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:34:13,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 140 [2024-12-02 13:34:13,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:13,475 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 13:34:13,475 INFO L226 Difference]: Without dead ends: 584 [2024-12-02 13:34:13,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:34:13,476 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:13,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 264 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:34:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-12-02 13:34:13,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2024-12-02 13:34:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 486 states have (on average 1.1563786008230452) internal successors, (562), 493 states have internal predecessors, (562), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:34:13,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 722 transitions. [2024-12-02 13:34:13,563 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 722 transitions. Word has length 140 [2024-12-02 13:34:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:13,563 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 722 transitions. [2024-12-02 13:34:13,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:13,564 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 722 transitions. [2024-12-02 13:34:13,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 13:34:13,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:13,565 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:34:13,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 13:34:13,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:13,765 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:13,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:13,765 INFO L85 PathProgramCache]: Analyzing trace with hash 176590771, now seen corresponding path program 1 times [2024-12-02 13:34:13,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:34:13,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111050676] [2024-12-02 13:34:13,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:13,766 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 [2024-12-02 13:34:13,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:34:13,767 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:34:13,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 13:34:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:14,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 13:34:14,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:34:14,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:34:14,329 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 [2024-12-02 13:34:14,471 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 31 treesize of output 15 [2024-12-02 13:34:14,617 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 [2024-12-02 13:34:14,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:14,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 13:34:15,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:15,562 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 51 treesize of output 41 [2024-12-02 13:34:16,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:16,004 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 52 treesize of output 61 [2024-12-02 13:34:20,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:20,710 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 82 treesize of output 67 [2024-12-02 13:34:21,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:21,282 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 71 treesize of output 67 [2024-12-02 13:34:22,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:22,172 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 71 treesize of output 85 [2024-12-02 13:34:22,990 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:22,990 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 109 treesize of output 118 [2024-12-02 13:34:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 361 proven. 42 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-12-02 13:34:24,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:34:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:34:24,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:34:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111050676] [2024-12-02 13:34:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111050676] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:34:24,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:34:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-12-02 13:34:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125436180] [2024-12-02 13:34:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:24,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:34:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:34:24,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:34:24,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=177, Unknown=1, NotChecked=0, Total=240 [2024-12-02 13:34:24,892 INFO L87 Difference]: Start difference. First operand 584 states and 722 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:26,513 INFO L93 Difference]: Finished difference Result 1212 states and 1479 transitions. [2024-12-02 13:34:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:34:26,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 140 [2024-12-02 13:34:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:26,516 INFO L225 Difference]: With dead ends: 1212 [2024-12-02 13:34:26,516 INFO L226 Difference]: Without dead ends: 718 [2024-12-02 13:34:26,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=68, Invalid=203, Unknown=1, NotChecked=0, Total=272 [2024-12-02 13:34:26,517 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 33 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:26,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 396 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 13:34:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-12-02 13:34:26,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 624. [2024-12-02 13:34:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 526 states have (on average 1.1520912547528517) internal successors, (606), 533 states have internal predecessors, (606), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:34:26,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 766 transitions. [2024-12-02 13:34:26,577 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 766 transitions. Word has length 140 [2024-12-02 13:34:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:26,577 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 766 transitions. [2024-12-02 13:34:26,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 766 transitions. [2024-12-02 13:34:26,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 13:34:26,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:26,578 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:34:26,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 13:34:26,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:26,779 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:26,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1281772711, now seen corresponding path program 1 times [2024-12-02 13:34:26,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:34:26,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704061201] [2024-12-02 13:34:26,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:26,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:34:26,781 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:34:26,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 13:34:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:27,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:34:27,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:34:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:34:27,213 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:34:27,213 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:34:27,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704061201] [2024-12-02 13:34:27,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704061201] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:27,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:27,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:34:27,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353098223] [2024-12-02 13:34:27,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:27,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:34:27,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:34:27,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:34:27,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:34:27,215 INFO L87 Difference]: Start difference. First operand 624 states and 766 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:28,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:28,045 INFO L93 Difference]: Finished difference Result 1174 states and 1437 transitions. [2024-12-02 13:34:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:34:28,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2024-12-02 13:34:28,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:28,048 INFO L225 Difference]: With dead ends: 1174 [2024-12-02 13:34:28,048 INFO L226 Difference]: Without dead ends: 628 [2024-12-02 13:34:28,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:34:28,049 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 109 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:28,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 300 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:34:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-12-02 13:34:28,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 626. [2024-12-02 13:34:28,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 528 states have (on average 1.1515151515151516) internal successors, (608), 535 states have internal predecessors, (608), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:34:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 768 transitions. [2024-12-02 13:34:28,110 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 768 transitions. Word has length 142 [2024-12-02 13:34:28,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:28,110 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 768 transitions. [2024-12-02 13:34:28,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 768 transitions. [2024-12-02 13:34:28,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 13:34:28,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:28,111 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:34:28,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 13:34:28,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:28,312 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:28,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:28,312 INFO L85 PathProgramCache]: Analyzing trace with hash -580172837, now seen corresponding path program 1 times [2024-12-02 13:34:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:34:28,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254040338] [2024-12-02 13:34:28,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:28,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:28,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:34:28,314 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:34:28,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 13:34:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:28,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 13:34:28,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:34:28,692 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 [2024-12-02 13:34:29,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 13:34:29,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:29,692 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 51 treesize of output 32 [2024-12-02 13:34:30,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:30,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2024-12-02 13:34:34,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:34,922 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 72 treesize of output 78 [2024-12-02 13:34:43,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:43,902 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 91 treesize of output 84 [2024-12-02 13:34:53,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:53,265 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 91 treesize of output 102 [2024-12-02 13:34:54,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:54,962 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 127 treesize of output 115 [2024-12-02 13:34:56,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:34:56,203 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 118 treesize of output 50 [2024-12-02 13:34:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 359 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-12-02 13:34:56,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:34:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:34:57,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:34:57,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254040338] [2024-12-02 13:34:57,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254040338] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:34:57,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:34:57,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2024-12-02 13:34:57,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535769631] [2024-12-02 13:34:57,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:57,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:34:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:34:57,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:34:57,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=251, Unknown=3, NotChecked=0, Total=342 [2024-12-02 13:34:57,227 INFO L87 Difference]: Start difference. First operand 626 states and 768 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:58,903 INFO L93 Difference]: Finished difference Result 1380 states and 1688 transitions. [2024-12-02 13:34:58,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:34:58,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2024-12-02 13:34:58,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:58,908 INFO L225 Difference]: With dead ends: 1380 [2024-12-02 13:34:58,908 INFO L226 Difference]: Without dead ends: 844 [2024-12-02 13:34:58,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 263 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=94, Invalid=283, Unknown=3, NotChecked=0, Total=380 [2024-12-02 13:34:58,909 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 155 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:58,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 426 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 13:34:58,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-12-02 13:34:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 704. [2024-12-02 13:34:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 605 states have (on average 1.1553719008264463) internal successors, (699), 612 states have internal predecessors, (699), 80 states have call successors, (80), 18 states have call predecessors, (80), 18 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:34:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 859 transitions. [2024-12-02 13:34:59,020 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 859 transitions. Word has length 142 [2024-12-02 13:34:59,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:59,020 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 859 transitions. [2024-12-02 13:34:59,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:34:59,021 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 859 transitions. [2024-12-02 13:34:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 13:34:59,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:59,022 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:34:59,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 13:34:59,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:59,222 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:59,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:59,223 INFO L85 PathProgramCache]: Analyzing trace with hash 907555981, now seen corresponding path program 1 times [2024-12-02 13:34:59,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:34:59,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861484315] [2024-12-02 13:34:59,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:59,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:34:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:34:59,225 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:34:59,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 13:34:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:59,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:34:59,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:34:59,710 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 22 treesize of output 10 [2024-12-02 13:34:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:34:59,815 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:34:59,815 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:34:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861484315] [2024-12-02 13:34:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861484315] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:59,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:59,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:34:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93200769] [2024-12-02 13:34:59,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:59,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:34:59,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:34:59,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:34:59,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:34:59,817 INFO L87 Difference]: Start difference. First operand 704 states and 859 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:35:04,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:35:08,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:35:10,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:10,972 INFO L93 Difference]: Finished difference Result 1658 states and 1998 transitions. [2024-12-02 13:35:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:35:10,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 143 [2024-12-02 13:35:10,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:10,975 INFO L225 Difference]: With dead ends: 1658 [2024-12-02 13:35:10,975 INFO L226 Difference]: Without dead ends: 1048 [2024-12-02 13:35:10,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:35:10,976 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 75 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:10,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 584 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-12-02 13:35:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-12-02 13:35:11,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 696. [2024-12-02 13:35:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 597 states have (on average 1.1440536013400335) internal successors, (683), 604 states have internal predecessors, (683), 80 states have call successors, (80), 18 states have call predecessors, (80), 18 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:35:11,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 843 transitions. [2024-12-02 13:35:11,033 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 843 transitions. Word has length 143 [2024-12-02 13:35:11,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:11,034 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 843 transitions. [2024-12-02 13:35:11,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:35:11,034 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 843 transitions. [2024-12-02 13:35:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 13:35:11,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:11,035 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:35:11,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 13:35:11,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:35:11,235 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:11,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:11,235 INFO L85 PathProgramCache]: Analyzing trace with hash -867954606, now seen corresponding path program 1 times [2024-12-02 13:35:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:35:11,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593141583] [2024-12-02 13:35:11,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:11,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:35:11,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:35:11,237 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:35:11,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 13:35:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:11,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:35:11,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:35:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:35:11,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:35:11,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:35:11,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593141583] [2024-12-02 13:35:11,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593141583] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:35:11,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:35:11,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:35:11,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115099874] [2024-12-02 13:35:11,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:35:11,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:35:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:35:11,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:35:11,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:35:11,558 INFO L87 Difference]: Start difference. First operand 696 states and 843 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:35:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:11,640 INFO L93 Difference]: Finished difference Result 1298 states and 1571 transitions. [2024-12-02 13:35:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:35:11,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 145 [2024-12-02 13:35:11,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:11,642 INFO L225 Difference]: With dead ends: 1298 [2024-12-02 13:35:11,642 INFO L226 Difference]: Without dead ends: 696 [2024-12-02 13:35:11,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:35:11,643 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:11,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 261 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:35:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-12-02 13:35:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2024-12-02 13:35:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 597 states have (on average 1.1306532663316582) internal successors, (675), 604 states have internal predecessors, (675), 80 states have call successors, (80), 18 states have call predecessors, (80), 18 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:35:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 835 transitions. [2024-12-02 13:35:11,697 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 835 transitions. Word has length 145 [2024-12-02 13:35:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:11,697 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 835 transitions. [2024-12-02 13:35:11,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:35:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 835 transitions. [2024-12-02 13:35:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 13:35:11,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:11,701 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:35:11,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 13:35:11,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:35:11,902 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:11,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:11,902 INFO L85 PathProgramCache]: Analyzing trace with hash -166354732, now seen corresponding path program 1 times [2024-12-02 13:35:11,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:35:11,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396908390] [2024-12-02 13:35:11,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:11,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:35:11,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:35:11,904 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:35:11,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-02 13:35:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:12,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:35:12,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:35:12,318 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 [2024-12-02 13:35:12,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:35:12,375 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 54 treesize of output 52 [2024-12-02 13:35:12,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:35:12,876 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 53 treesize of output 19 [2024-12-02 13:35:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 13:35:13,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:35:13,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:35:13,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396908390] [2024-12-02 13:35:13,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396908390] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:35:13,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:35:13,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 13:35:13,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200195977] [2024-12-02 13:35:13,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:35:13,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 13:35:13,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:35:13,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 13:35:13,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:35:13,466 INFO L87 Difference]: Start difference. First operand 696 states and 835 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:35:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:19,666 INFO L93 Difference]: Finished difference Result 1834 states and 2197 transitions. [2024-12-02 13:35:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:35:19,666 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 145 [2024-12-02 13:35:19,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:19,669 INFO L225 Difference]: With dead ends: 1834 [2024-12-02 13:35:19,669 INFO L226 Difference]: Without dead ends: 1232 [2024-12-02 13:35:19,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:35:19,670 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 112 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:19,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1726 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 13:35:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-12-02 13:35:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1188. [2024-12-02 13:35:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1016 states have (on average 1.1318897637795275) internal successors, (1150), 1030 states have internal predecessors, (1150), 140 states have call successors, (140), 31 states have call predecessors, (140), 31 states have return successors, (140), 126 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 13:35:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1430 transitions. [2024-12-02 13:35:19,781 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1430 transitions. Word has length 145 [2024-12-02 13:35:19,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:19,781 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1430 transitions. [2024-12-02 13:35:19,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 13:35:19,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1430 transitions. [2024-12-02 13:35:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-12-02 13:35:19,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:19,783 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:35:19,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-02 13:35:19,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:35:19,983 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:19,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 124415737, now seen corresponding path program 1 times [2024-12-02 13:35:19,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:35:19,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494582280] [2024-12-02 13:35:19,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:19,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:35:19,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:35:19,986 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 13:35:19,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 13:35:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:20,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 13:35:20,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:35:20,715 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 107 treesize of output 106 [2024-12-02 13:35:21,014 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 156 treesize of output 141 [2024-12-02 13:35:21,809 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 151 treesize of output 136 [2024-12-02 13:35:22,793 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 151 treesize of output 136 [2024-12-02 13:35:24,041 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 151 treesize of output 136 [2024-12-02 13:35:26,116 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 156 treesize of output 141 [2024-12-02 13:35:28,788 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 161 treesize of output 144 [2024-12-02 13:35:34,250 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 177 treesize of output 158 [2024-12-02 13:35:38,672 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 177 treesize of output 158 [2024-12-02 13:35:48,369 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 176 treesize of output 153 [2024-12-02 13:35:53,149 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 181 treesize of output 154 [2024-12-02 13:35:54,042 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 205 treesize of output 178 [2024-12-02 13:35:56,318 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 184 treesize of output 158 [2024-12-02 13:35:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2047 backedges. 13 proven. 1506 refuted. 12 times theorem prover too weak. 516 trivial. 0 not checked. [2024-12-02 13:35:57,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:36:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2047 backedges. 13 proven. 49 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2024-12-02 13:36:00,119 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:36:00,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494582280] [2024-12-02 13:36:00,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494582280] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:36:00,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:36:00,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4] total 15 [2024-12-02 13:36:00,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069736490] [2024-12-02 13:36:00,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:36:00,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:36:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:36:00,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:36:00,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=143, Unknown=1, NotChecked=0, Total=210 [2024-12-02 13:36:00,121 INFO L87 Difference]: Start difference. First operand 1188 states and 1430 transitions. Second operand has 15 states, 15 states have (on average 15.466666666666667) internal successors, (232), 15 states have internal predecessors, (232), 11 states have call successors, (64), 10 states have call predecessors, (64), 10 states have return successors, (64), 11 states have call predecessors, (64), 11 states have call successors, (64) [2024-12-02 13:36:05,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:16,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:20,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:22,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:25,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:26,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:31,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:36,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:37,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:41,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:36:50,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-12-02 13:36:50,112 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 13:36:50,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 526 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 36.1s TimeCoverageRelationStatistics Valid=131, Invalid=248, Unknown=1, NotChecked=0, Total=380 [2024-12-02 13:36:50,113 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:36:50,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 4 Unknown, 0 Unchecked, 39.7s Time] [2024-12-02 13:36:50,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 13:36:50,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:36:50,314 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:388) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-12-02 13:36:50,318 INFO L158 Benchmark]: Toolchain (without parser) took 423484.35ms. Allocated memory was 92.3MB in the beginning and 260.0MB in the end (delta: 167.8MB). Free memory was 69.2MB in the beginning and 111.1MB in the end (delta: -41.9MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2024-12-02 13:36:50,319 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:36:50,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.68ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 51.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:36:50,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.35ms. Allocated memory is still 92.3MB. Free memory was 51.2MB in the beginning and 47.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:36:50,319 INFO L158 Benchmark]: Boogie Preprocessor took 74.45ms. Allocated memory is still 92.3MB. Free memory was 47.9MB in the beginning and 43.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:36:50,319 INFO L158 Benchmark]: RCFGBuilder took 1456.29ms. Allocated memory is still 92.3MB. Free memory was 43.3MB in the beginning and 36.0MB in the end (delta: 7.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-12-02 13:36:50,320 INFO L158 Benchmark]: TraceAbstraction took 421642.54ms. Allocated memory was 92.3MB in the beginning and 260.0MB in the end (delta: 167.8MB). Free memory was 35.4MB in the beginning and 111.1MB in the end (delta: -75.7MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2024-12-02 13:36:50,321 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.68ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 51.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.35ms. Allocated memory is still 92.3MB. Free memory was 51.2MB in the beginning and 47.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 74.45ms. Allocated memory is still 92.3MB. Free memory was 47.9MB in the beginning and 43.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1456.29ms. Allocated memory is still 92.3MB. Free memory was 43.3MB in the beginning and 36.0MB in the end (delta: 7.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 421642.54ms. Allocated memory was 92.3MB in the beginning and 260.0MB in the end (delta: 167.8MB). Free memory was 35.4MB in the beginning and 111.1MB in the end (delta: -75.7MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f742a30c-adba-4ec2-97d6-98c958125fe7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken