./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:02:59,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:02:59,560 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:02:59,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:02:59,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:02:59,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:02:59,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:02:59,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:02:59,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:02:59,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:02:59,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:02:59,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:02:59,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:02:59,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:02:59,624 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:02:59,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:02:59,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:02:59,625 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:02:59,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:02:59,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:02:59,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:02:59,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:02:59,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:02:59,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:02:59,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:02:59,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:02:59,627 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:02:59,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:02:59,627 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:02:59,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:02:59,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:02:59,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:02:59,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:59,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:02:59,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:02:59,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:02:59,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:02:59,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:59,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:02:59,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:02:59,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:02:59,631 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_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09 [2024-11-24 00:03:00,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:03:00,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:03:00,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:03:00,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:03:00,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:03:00,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i [2024-11-24 00:03:03,600 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/5900bfeba/e2356f19e0934f33980bd583c684e67b/FLAG759cd2c86 [2024-11-24 00:03:03,969 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:03:03,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i [2024-11-24 00:03:03,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/5900bfeba/e2356f19e0934f33980bd583c684e67b/FLAG759cd2c86 [2024-11-24 00:03:04,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/5900bfeba/e2356f19e0934f33980bd583c684e67b [2024-11-24 00:03:04,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:03:04,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:03:04,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:03:04,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:03:04,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:03:04,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323a48eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04, skipping insertion in model container [2024-11-24 00:03:04,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:03:04,241 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_dc50961b-d13c-4202-9abf-43c6efce954f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i[916,929] [2024-11-24 00:03:04,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:03:04,327 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:03:04,339 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_dc50961b-d13c-4202-9abf-43c6efce954f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i[916,929] [2024-11-24 00:03:04,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:03:04,412 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:03:04,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04 WrapperNode [2024-11-24 00:03:04,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:03:04,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:03:04,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:03:04,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:03:04,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,510 INFO L138 Inliner]: procedures = 30, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 511 [2024-11-24 00:03:04,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:03:04,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:03:04,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:03:04,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:03:04,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,535 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-24 00:03:04,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,570 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:03:04,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:03:04,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:03:04,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:03:04,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (1/1) ... [2024-11-24 00:03:04,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:03:04,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:04,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:03:04,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:03:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:03:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-24 00:03:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-24 00:03:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-24 00:03:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:03:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-24 00:03:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:03:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:03:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:03:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:03:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:03:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:03:04,894 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:03:04,896 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:03:05,815 INFO L? ?]: Removed 139 outVars from TransFormulas that were not future-live. [2024-11-24 00:03:05,818 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:03:05,832 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:03:05,835 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:03:05,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:05 BoogieIcfgContainer [2024-11-24 00:03:05,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:03:05,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:03:05,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:03:05,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:03:05,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:03:04" (1/3) ... [2024-11-24 00:03:05,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197066c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:05, skipping insertion in model container [2024-11-24 00:03:05,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:04" (2/3) ... [2024-11-24 00:03:05,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197066c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:05, skipping insertion in model container [2024-11-24 00:03:05,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:05" (3/3) ... [2024-11-24 00:03:05,850 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-83.i [2024-11-24 00:03:05,870 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:03:05,873 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-83.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:03:05,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:03:05,973 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;@24420f58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:03:05,974 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:03:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:03:05,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:03:05,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:05,994 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:05,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:06,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:06,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1804544545, now seen corresponding path program 1 times [2024-11-24 00:03:06,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:06,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149327573] [2024-11-24 00:03:06,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:06,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:06,809 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:06,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:06,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149327573] [2024-11-24 00:03:06,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149327573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:06,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:06,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:03:06,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258898615] [2024-11-24 00:03:06,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:06,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:03:06,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:06,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:03:06,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:06,852 INFO L87 Difference]: Start difference. First operand has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:06,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:06,973 INFO L93 Difference]: Finished difference Result 220 states and 341 transitions. [2024-11-24 00:03:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:03:06,976 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:03:06,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:06,988 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:03:06,989 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 00:03:06,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:07,000 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:07,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:03:07,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 00:03:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-24 00:03:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 97 states have internal predecessors, (133), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:03:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 155 transitions. [2024-11-24 00:03:07,064 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 155 transitions. Word has length 106 [2024-11-24 00:03:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:07,068 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 155 transitions. [2024-11-24 00:03:07,069 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2024-11-24 00:03:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:03:07,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:07,075 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:07,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:03:07,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:07,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1810364381, now seen corresponding path program 1 times [2024-11-24 00:03:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004033579] [2024-11-24 00:03:07,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:07,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:07,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004033579] [2024-11-24 00:03:07,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004033579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:07,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:07,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:03:07,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706866324] [2024-11-24 00:03:07,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:07,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:03:07,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:07,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:03:07,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:07,538 INFO L87 Difference]: Start difference. First operand 110 states and 155 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:07,593 INFO L93 Difference]: Finished difference Result 220 states and 311 transitions. [2024-11-24 00:03:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:03:07,594 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:03:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:07,597 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:03:07,597 INFO L226 Difference]: Without dead ends: 113 [2024-11-24 00:03:07,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:07,599 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:07,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 440 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:07,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-24 00:03:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-11-24 00:03:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:03:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 157 transitions. [2024-11-24 00:03:07,629 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 157 transitions. Word has length 106 [2024-11-24 00:03:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:07,630 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 157 transitions. [2024-11-24 00:03:07,630 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 157 transitions. [2024-11-24 00:03:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:03:07,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:07,637 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:07,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:03:07,637 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:07,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:07,638 INFO L85 PathProgramCache]: Analyzing trace with hash -35357019, now seen corresponding path program 1 times [2024-11-24 00:03:07,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:07,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132337438] [2024-11-24 00:03:07,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:07,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:08,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:08,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132337438] [2024-11-24 00:03:08,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132337438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:08,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:08,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:03:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739892179] [2024-11-24 00:03:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:08,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:03:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:08,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:03:08,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:08,044 INFO L87 Difference]: Start difference. First operand 112 states and 157 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:08,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:08,117 INFO L93 Difference]: Finished difference Result 224 states and 315 transitions. [2024-11-24 00:03:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:03:08,118 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:03:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:08,121 INFO L225 Difference]: With dead ends: 224 [2024-11-24 00:03:08,123 INFO L226 Difference]: Without dead ends: 115 [2024-11-24 00:03:08,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:08,125 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:08,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 442 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:03:08,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-24 00:03:08,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2024-11-24 00:03:08,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:03:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-11-24 00:03:08,147 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 106 [2024-11-24 00:03:08,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:08,148 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-11-24 00:03:08,148 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-11-24 00:03:08,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:03:08,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:08,151 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:08,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:03:08,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:08,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:08,152 INFO L85 PathProgramCache]: Analyzing trace with hash -33509977, now seen corresponding path program 1 times [2024-11-24 00:03:08,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:08,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391255799] [2024-11-24 00:03:08,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:08,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:08,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:08,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391255799] [2024-11-24 00:03:08,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391255799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:08,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:08,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:03:08,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147297374] [2024-11-24 00:03:08,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:08,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:03:08,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:08,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:03:08,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:08,900 INFO L87 Difference]: Start difference. First operand 114 states and 159 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:09,219 INFO L93 Difference]: Finished difference Result 225 states and 315 transitions. [2024-11-24 00:03:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:03:09,221 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:03:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:09,223 INFO L225 Difference]: With dead ends: 225 [2024-11-24 00:03:09,223 INFO L226 Difference]: Without dead ends: 114 [2024-11-24 00:03:09,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:03:09,224 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 138 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:09,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:03:09,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-24 00:03:09,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-24 00:03:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:03:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions. [2024-11-24 00:03:09,244 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 106 [2024-11-24 00:03:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:09,244 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-24 00:03:09,244 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions. [2024-11-24 00:03:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:03:09,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:09,249 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:09,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:03:09,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:09,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:09,250 INFO L85 PathProgramCache]: Analyzing trace with hash 895739275, now seen corresponding path program 1 times [2024-11-24 00:03:09,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:09,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456865102] [2024-11-24 00:03:09,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:09,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:09,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:09,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456865102] [2024-11-24 00:03:09,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456865102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:09,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:09,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:03:09,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915228580] [2024-11-24 00:03:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:09,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:03:09,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:09,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:03:09,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:03:09,625 INFO L87 Difference]: Start difference. First operand 114 states and 158 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:10,121 INFO L93 Difference]: Finished difference Result 227 states and 316 transitions. [2024-11-24 00:03:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:03:10,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:03:10,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:10,124 INFO L225 Difference]: With dead ends: 227 [2024-11-24 00:03:10,124 INFO L226 Difference]: Without dead ends: 116 [2024-11-24 00:03:10,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:03:10,125 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:10,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 437 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:03:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-24 00:03:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-24 00:03:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:03:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions. [2024-11-24 00:03:10,136 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 160 transitions. Word has length 107 [2024-11-24 00:03:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:10,137 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 160 transitions. [2024-11-24 00:03:10,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2024-11-24 00:03:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:10,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:10,139 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:10,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:03:10,139 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:10,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash 85606593, now seen corresponding path program 1 times [2024-11-24 00:03:10,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:10,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746709436] [2024-11-24 00:03:10,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:10,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:12,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746709436] [2024-11-24 00:03:12,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746709436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:12,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:12,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:03:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45306116] [2024-11-24 00:03:12,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:12,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:03:12,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:12,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:03:12,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:03:12,707 INFO L87 Difference]: Start difference. First operand 116 states and 160 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:03:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:13,901 INFO L93 Difference]: Finished difference Result 310 states and 426 transitions. [2024-11-24 00:03:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:03:13,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-24 00:03:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:13,904 INFO L225 Difference]: With dead ends: 310 [2024-11-24 00:03:13,904 INFO L226 Difference]: Without dead ends: 197 [2024-11-24 00:03:13,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:03:13,906 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 83 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:13,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 707 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:03:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-24 00:03:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-24 00:03:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 176 states have (on average 1.3409090909090908) internal successors, (236), 177 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:03:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2024-11-24 00:03:13,927 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 108 [2024-11-24 00:03:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:13,928 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2024-11-24 00:03:13,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:03:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2024-11-24 00:03:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:13,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:13,930 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:13,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:03:13,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:13,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash -935461761, now seen corresponding path program 1 times [2024-11-24 00:03:13,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:13,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894636111] [2024-11-24 00:03:13,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:13,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:14,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550083454] [2024-11-24 00:03:14,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:14,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:14,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:14,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:14,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:03:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:14,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:03:14,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:14,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:03:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:14,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:14,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:14,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894636111] [2024-11-24 00:03:14,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:14,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550083454] [2024-11-24 00:03:14,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550083454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:14,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:14,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:03:14,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532471720] [2024-11-24 00:03:14,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:14,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:03:14,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:14,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:03:14,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:03:14,796 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:15,402 INFO L93 Difference]: Finished difference Result 548 states and 754 transitions. [2024-11-24 00:03:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:03:15,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:03:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:15,406 INFO L225 Difference]: With dead ends: 548 [2024-11-24 00:03:15,406 INFO L226 Difference]: Without dead ends: 357 [2024-11-24 00:03:15,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:03:15,407 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 113 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:15,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 451 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:03:15,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-24 00:03:15,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 214. [2024-11-24 00:03:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 196 states have (on average 1.3571428571428572) internal successors, (266), 197 states have internal predecessors, (266), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:03:15,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 296 transitions. [2024-11-24 00:03:15,452 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 296 transitions. Word has length 108 [2024-11-24 00:03:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:15,454 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 296 transitions. [2024-11-24 00:03:15,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 296 transitions. [2024-11-24 00:03:15,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:15,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:15,456 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:15,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:03:15,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 00:03:15,657 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:15,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1771157633, now seen corresponding path program 1 times [2024-11-24 00:03:15,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:15,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561200733] [2024-11-24 00:03:15,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:15,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:15,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888546812] [2024-11-24 00:03:15,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:15,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:15,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:15,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:15,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:03:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:16,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:03:16,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:16,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:16,574 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 29 treesize of output 31 [2024-11-24 00:03:16,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:16,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 12 [2024-11-24 00:03:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:16,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:16,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:16,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561200733] [2024-11-24 00:03:16,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:16,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888546812] [2024-11-24 00:03:16,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888546812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:16,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:16,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:03:16,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701952879] [2024-11-24 00:03:16,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:16,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:03:16,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:16,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:03:16,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:03:16,798 INFO L87 Difference]: Start difference. First operand 214 states and 296 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:18,909 INFO L93 Difference]: Finished difference Result 606 states and 838 transitions. [2024-11-24 00:03:18,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:03:18,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:03:18,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:18,914 INFO L225 Difference]: With dead ends: 606 [2024-11-24 00:03:18,914 INFO L226 Difference]: Without dead ends: 395 [2024-11-24 00:03:18,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:03:18,916 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 297 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:18,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 510 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:03:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-24 00:03:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 221. [2024-11-24 00:03:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 203 states have (on average 1.3497536945812807) internal successors, (274), 204 states have internal predecessors, (274), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:03:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 304 transitions. [2024-11-24 00:03:18,955 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 304 transitions. Word has length 108 [2024-11-24 00:03:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:18,956 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 304 transitions. [2024-11-24 00:03:18,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 304 transitions. [2024-11-24 00:03:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:18,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:18,958 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:18,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:03:19,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-24 00:03:19,159 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:19,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:19,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1718407104, now seen corresponding path program 1 times [2024-11-24 00:03:19,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:19,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487541261] [2024-11-24 00:03:19,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:19,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487541261] [2024-11-24 00:03:19,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487541261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:19,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:19,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:03:19,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377494908] [2024-11-24 00:03:19,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:19,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:03:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:19,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:03:19,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:03:19,885 INFO L87 Difference]: Start difference. First operand 221 states and 304 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:20,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:20,448 INFO L93 Difference]: Finished difference Result 439 states and 605 transitions. [2024-11-24 00:03:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:03:20,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-24 00:03:20,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:20,451 INFO L225 Difference]: With dead ends: 439 [2024-11-24 00:03:20,451 INFO L226 Difference]: Without dead ends: 221 [2024-11-24 00:03:20,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:20,453 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 225 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:20,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 203 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:03:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-24 00:03:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-11-24 00:03:20,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 203 states have (on average 1.3399014778325122) internal successors, (272), 204 states have internal predecessors, (272), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:03:20,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 302 transitions. [2024-11-24 00:03:20,479 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 302 transitions. Word has length 108 [2024-11-24 00:03:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:20,480 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 302 transitions. [2024-11-24 00:03:20,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 302 transitions. [2024-11-24 00:03:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:20,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:20,482 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:20,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:03:20,482 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:20,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1137606269, now seen corresponding path program 1 times [2024-11-24 00:03:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480408526] [2024-11-24 00:03:20,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480408526] [2024-11-24 00:03:23,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480408526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:23,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:23,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:03:23,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304957882] [2024-11-24 00:03:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:23,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:03:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:23,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:03:23,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:23,069 INFO L87 Difference]: Start difference. First operand 221 states and 302 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:25,185 INFO L93 Difference]: Finished difference Result 529 states and 724 transitions. [2024-11-24 00:03:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:03:25,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-24 00:03:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:25,189 INFO L225 Difference]: With dead ends: 529 [2024-11-24 00:03:25,189 INFO L226 Difference]: Without dead ends: 311 [2024-11-24 00:03:25,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:03:25,192 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 97 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:25,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 777 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:03:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-24 00:03:25,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 236. [2024-11-24 00:03:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 218 states have (on average 1.348623853211009) internal successors, (294), 219 states have internal predecessors, (294), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:03:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 324 transitions. [2024-11-24 00:03:25,227 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 324 transitions. Word has length 108 [2024-11-24 00:03:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:25,227 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 324 transitions. [2024-11-24 00:03:25,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 324 transitions. [2024-11-24 00:03:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:25,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:25,230 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:25,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:03:25,230 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:25,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:25,231 INFO L85 PathProgramCache]: Analyzing trace with hash -626011005, now seen corresponding path program 1 times [2024-11-24 00:03:25,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:25,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029708518] [2024-11-24 00:03:25,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:25,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:27,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:27,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029708518] [2024-11-24 00:03:27,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029708518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:27,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:27,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:03:27,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475219360] [2024-11-24 00:03:27,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:27,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:03:27,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:27,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:03:27,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:27,490 INFO L87 Difference]: Start difference. First operand 236 states and 324 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:29,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:29,763 INFO L93 Difference]: Finished difference Result 557 states and 767 transitions. [2024-11-24 00:03:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:03:29,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-24 00:03:29,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:29,766 INFO L225 Difference]: With dead ends: 557 [2024-11-24 00:03:29,766 INFO L226 Difference]: Without dead ends: 324 [2024-11-24 00:03:29,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:03:29,767 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 95 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:29,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 928 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 00:03:29,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-24 00:03:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 266. [2024-11-24 00:03:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 248 states have (on average 1.3588709677419355) internal successors, (337), 249 states have internal predecessors, (337), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:03:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 367 transitions. [2024-11-24 00:03:29,803 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 367 transitions. Word has length 108 [2024-11-24 00:03:29,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:29,806 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 367 transitions. [2024-11-24 00:03:29,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 367 transitions. [2024-11-24 00:03:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:03:29,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:29,808 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:29,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:03:29,812 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:29,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:29,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1647079359, now seen corresponding path program 1 times [2024-11-24 00:03:29,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:29,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301788891] [2024-11-24 00:03:29,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:29,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:30,978 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:30,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:30,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301788891] [2024-11-24 00:03:30,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301788891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:30,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:30,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:03:30,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600555267] [2024-11-24 00:03:30,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:30,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:03:30,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:30,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:03:30,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:03:30,981 INFO L87 Difference]: Start difference. First operand 266 states and 367 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:03:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:31,934 INFO L93 Difference]: Finished difference Result 601 states and 827 transitions. [2024-11-24 00:03:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:03:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-24 00:03:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:31,937 INFO L225 Difference]: With dead ends: 601 [2024-11-24 00:03:31,937 INFO L226 Difference]: Without dead ends: 338 [2024-11-24 00:03:31,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:03:31,939 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 77 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:31,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1052 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:03:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-24 00:03:31,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 335. [2024-11-24 00:03:31,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 314 states have (on average 1.356687898089172) internal successors, (426), 316 states have internal predecessors, (426), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 00:03:31,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 460 transitions. [2024-11-24 00:03:31,968 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 460 transitions. Word has length 108 [2024-11-24 00:03:31,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:31,969 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 460 transitions. [2024-11-24 00:03:31,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:03:31,969 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 460 transitions. [2024-11-24 00:03:31,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:03:31,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:31,986 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:31,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:03:31,989 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:31,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:31,990 INFO L85 PathProgramCache]: Analyzing trace with hash 234761414, now seen corresponding path program 1 times [2024-11-24 00:03:31,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:31,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930283485] [2024-11-24 00:03:31,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:32,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [783732627] [2024-11-24 00:03:32,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:32,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:32,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:32,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:03:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:32,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:03:32,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:32,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 00:03:32,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:32,784 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 35 treesize of output 40 [2024-11-24 00:03:33,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:33,064 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 84 treesize of output 64 [2024-11-24 00:03:33,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:33,189 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 68 treesize of output 22 [2024-11-24 00:03:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:33,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:33,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:33,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930283485] [2024-11-24 00:03:33,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:33,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783732627] [2024-11-24 00:03:33,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783732627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:33,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:33,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:03:33,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561717356] [2024-11-24 00:03:33,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:33,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:03:33,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:33,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:03:33,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:33,226 INFO L87 Difference]: Start difference. First operand 335 states and 460 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:34,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:34,431 INFO L93 Difference]: Finished difference Result 777 states and 1064 transitions. [2024-11-24 00:03:34,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:03:34,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:03:34,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:34,435 INFO L225 Difference]: With dead ends: 777 [2024-11-24 00:03:34,436 INFO L226 Difference]: Without dead ends: 445 [2024-11-24 00:03:34,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:03:34,437 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 386 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:34,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 570 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:03:34,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-24 00:03:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 438. [2024-11-24 00:03:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 404 states have (on average 1.3465346534653466) internal successors, (544), 408 states have internal predecessors, (544), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:03:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 600 transitions. [2024-11-24 00:03:34,480 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 600 transitions. Word has length 109 [2024-11-24 00:03:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:34,480 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 600 transitions. [2024-11-24 00:03:34,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 600 transitions. [2024-11-24 00:03:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:03:34,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:34,483 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:34,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:34,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 00:03:34,687 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:34,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1353586488, now seen corresponding path program 1 times [2024-11-24 00:03:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:34,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842137044] [2024-11-24 00:03:34,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:34,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440028412] [2024-11-24 00:03:34,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:34,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:34,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:34,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:34,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:03:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:35,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 00:03:35,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:35,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2024-11-24 00:03:35,934 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 120 treesize of output 100 [2024-11-24 00:03:36,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:03:36,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 00:03:36,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:36,504 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 46 treesize of output 45 [2024-11-24 00:03:36,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:36,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 48 [2024-11-24 00:03:36,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:36,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 17 [2024-11-24 00:03:36,916 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:36,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:36,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:36,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842137044] [2024-11-24 00:03:36,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:36,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440028412] [2024-11-24 00:03:36,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440028412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:36,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:03:36,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005609584] [2024-11-24 00:03:36,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:36,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:03:36,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:36,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:03:36,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:36,919 INFO L87 Difference]: Start difference. First operand 438 states and 600 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:43,332 INFO L93 Difference]: Finished difference Result 1328 states and 1809 transitions. [2024-11-24 00:03:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:03:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:03:43,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:43,336 INFO L225 Difference]: With dead ends: 1328 [2024-11-24 00:03:43,337 INFO L226 Difference]: Without dead ends: 921 [2024-11-24 00:03:43,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:03:43,338 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 342 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:43,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 725 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-24 00:03:43,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-24 00:03:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 491. [2024-11-24 00:03:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 454 states have (on average 1.3458149779735682) internal successors, (611), 457 states have internal predecessors, (611), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:03:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 671 transitions. [2024-11-24 00:03:43,376 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 671 transitions. Word has length 109 [2024-11-24 00:03:43,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:43,377 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 671 transitions. [2024-11-24 00:03:43,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:43,377 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 671 transitions. [2024-11-24 00:03:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:03:43,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:43,379 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:43,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:03:43,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:03:43,583 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:43,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1652934134, now seen corresponding path program 1 times [2024-11-24 00:03:43,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:43,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306287411] [2024-11-24 00:03:43,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:43,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:43,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654678232] [2024-11-24 00:03:43,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:43,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:43,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:43,682 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:43,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:03:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:44,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:03:44,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:44,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:44,253 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 27 treesize of output 29 [2024-11-24 00:03:44,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:44,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 19 [2024-11-24 00:03:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:44,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:44,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:44,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306287411] [2024-11-24 00:03:44,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:44,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654678232] [2024-11-24 00:03:44,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654678232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:44,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:44,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:03:44,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701849479] [2024-11-24 00:03:44,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:44,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:03:44,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:44,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:03:44,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:03:44,607 INFO L87 Difference]: Start difference. First operand 491 states and 671 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:46,196 INFO L93 Difference]: Finished difference Result 1113 states and 1506 transitions. [2024-11-24 00:03:46,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:03:46,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:03:46,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:46,200 INFO L225 Difference]: With dead ends: 1113 [2024-11-24 00:03:46,201 INFO L226 Difference]: Without dead ends: 700 [2024-11-24 00:03:46,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:03:46,202 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 201 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:46,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 927 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:03:46,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-24 00:03:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 686. [2024-11-24 00:03:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 630 states have (on average 1.33015873015873) internal successors, (838), 636 states have internal predecessors, (838), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:03:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 928 transitions. [2024-11-24 00:03:46,258 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 928 transitions. Word has length 109 [2024-11-24 00:03:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:46,260 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 928 transitions. [2024-11-24 00:03:46,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 928 transitions. [2024-11-24 00:03:46,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:03:46,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:46,263 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:46,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:03:46,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:03:46,464 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:46,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1630301880, now seen corresponding path program 1 times [2024-11-24 00:03:46,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:46,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634654532] [2024-11-24 00:03:46,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:46,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:46,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367581817] [2024-11-24 00:03:46,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:46,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:46,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:46,568 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:46,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:03:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:46,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:03:46,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:46,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:03:46,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 00:03:47,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:47,018 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 50 [2024-11-24 00:03:47,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:47,130 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 66 treesize of output 53 [2024-11-24 00:03:47,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:47,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 22 [2024-11-24 00:03:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:47,208 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:47,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634654532] [2024-11-24 00:03:47,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367581817] [2024-11-24 00:03:47,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367581817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:47,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:47,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:03:47,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151094652] [2024-11-24 00:03:47,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:47,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:03:47,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:47,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:03:47,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:03:47,211 INFO L87 Difference]: Start difference. First operand 686 states and 928 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:48,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:48,185 INFO L93 Difference]: Finished difference Result 1287 states and 1735 transitions. [2024-11-24 00:03:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:03:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:03:48,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:48,189 INFO L225 Difference]: With dead ends: 1287 [2024-11-24 00:03:48,189 INFO L226 Difference]: Without dead ends: 686 [2024-11-24 00:03:48,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:48,191 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 307 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:48,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 649 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:03:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-24 00:03:48,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 662. [2024-11-24 00:03:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 606 states have (on average 1.3201320132013201) internal successors, (800), 612 states have internal predecessors, (800), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:03:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 890 transitions. [2024-11-24 00:03:48,243 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 890 transitions. Word has length 109 [2024-11-24 00:03:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:48,244 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 890 transitions. [2024-11-24 00:03:48,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:03:48,244 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 890 transitions. [2024-11-24 00:03:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:03:48,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:48,246 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:48,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:03:48,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 00:03:48,450 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:48,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:48,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1637408930, now seen corresponding path program 1 times [2024-11-24 00:03:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:48,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980081307] [2024-11-24 00:03:48,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:48,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:48,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266417092] [2024-11-24 00:03:48,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:48,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:48,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:48,549 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:48,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:03:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:49,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-24 00:03:49,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:49,248 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 47 treesize of output 46 [2024-11-24 00:03:49,304 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 86 treesize of output 64 [2024-11-24 00:03:49,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:03:49,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-24 00:03:49,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-24 00:03:49,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-24 00:03:49,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:49,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2024-11-24 00:03:49,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:49,938 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 39 treesize of output 40 [2024-11-24 00:03:50,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:50,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-24 00:03:50,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:50,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 31 [2024-11-24 00:03:50,414 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 118 proven. 12 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-24 00:03:50,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:51,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:51,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980081307] [2024-11-24 00:03:51,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:51,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266417092] [2024-11-24 00:03:51,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266417092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:51,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:51,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 00:03:51,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336151284] [2024-11-24 00:03:51,886 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:51,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:03:51,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:51,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:03:51,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:03:51,889 INFO L87 Difference]: Start difference. First operand 662 states and 890 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:54,123 INFO L93 Difference]: Finished difference Result 1712 states and 2291 transitions. [2024-11-24 00:03:54,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:03:54,124 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2024-11-24 00:03:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:54,128 INFO L225 Difference]: With dead ends: 1712 [2024-11-24 00:03:54,128 INFO L226 Difference]: Without dead ends: 1135 [2024-11-24 00:03:54,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=220, Invalid=836, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:03:54,130 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 414 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:54,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 916 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:03:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-24 00:03:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 671. [2024-11-24 00:03:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 613 states have (on average 1.3164763458401305) internal successors, (807), 619 states have internal predecessors, (807), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:03:54,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 897 transitions. [2024-11-24 00:03:54,197 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 897 transitions. Word has length 110 [2024-11-24 00:03:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:54,198 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 897 transitions. [2024-11-24 00:03:54,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:03:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 897 transitions. [2024-11-24 00:03:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:03:54,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:54,202 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:54,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:54,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 00:03:54,403 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:54,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1613857758, now seen corresponding path program 1 times [2024-11-24 00:03:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:54,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037946654] [2024-11-24 00:03:54,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:54,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:54,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582250736] [2024-11-24 00:03:54,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:54,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:54,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:54,496 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:54,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:03:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:55,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-24 00:03:55,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:55,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:03:55,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:03:55,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:03:55,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:03:55,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:03:55,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 15 [2024-11-24 00:03:55,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:55,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 54 [2024-11-24 00:03:55,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:55,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 57 [2024-11-24 00:03:55,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:55,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 31 [2024-11-24 00:03:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:03:55,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:55,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:55,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037946654] [2024-11-24 00:03:55,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:55,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582250736] [2024-11-24 00:03:55,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582250736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:55,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:55,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:03:55,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266979226] [2024-11-24 00:03:55,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:55,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:03:55,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:55,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:03:55,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:03:55,845 INFO L87 Difference]: Start difference. First operand 671 states and 897 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:00,064 INFO L93 Difference]: Finished difference Result 1251 states and 1673 transitions. [2024-11-24 00:04:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:04:00,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:04:00,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:00,068 INFO L225 Difference]: With dead ends: 1251 [2024-11-24 00:04:00,068 INFO L226 Difference]: Without dead ends: 674 [2024-11-24 00:04:00,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:04:00,070 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 193 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:00,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 440 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 00:04:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-24 00:04:00,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 672. [2024-11-24 00:04:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 614 states have (on average 1.3159609120521172) internal successors, (808), 620 states have internal predecessors, (808), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:04:00,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 898 transitions. [2024-11-24 00:04:00,127 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 898 transitions. Word has length 110 [2024-11-24 00:04:00,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:00,128 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 898 transitions. [2024-11-24 00:04:00,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 898 transitions. [2024-11-24 00:04:00,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:04:00,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:00,130 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:00,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:00,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 00:04:00,331 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:00,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1679660447, now seen corresponding path program 1 times [2024-11-24 00:04:00,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:00,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725285163] [2024-11-24 00:04:00,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:00,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:00,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:00,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725285163] [2024-11-24 00:04:00,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725285163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:00,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:00,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:04:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104166480] [2024-11-24 00:04:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:00,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:04:00,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:00,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:04:00,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:00,630 INFO L87 Difference]: Start difference. First operand 672 states and 898 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:01,483 INFO L93 Difference]: Finished difference Result 1470 states and 1966 transitions. [2024-11-24 00:04:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:04:01,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:04:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:01,488 INFO L225 Difference]: With dead ends: 1470 [2024-11-24 00:04:01,488 INFO L226 Difference]: Without dead ends: 892 [2024-11-24 00:04:01,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:04:01,490 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 114 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:01,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 579 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:04:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2024-11-24 00:04:01,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 732. [2024-11-24 00:04:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 674 states have (on average 1.3130563798219586) internal successors, (885), 680 states have internal predecessors, (885), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:04:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 975 transitions. [2024-11-24 00:04:01,545 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 975 transitions. Word has length 110 [2024-11-24 00:04:01,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:01,546 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 975 transitions. [2024-11-24 00:04:01,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 975 transitions. [2024-11-24 00:04:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:04:01,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:01,548 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:01,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:04:01,548 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:01,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash 868132520, now seen corresponding path program 1 times [2024-11-24 00:04:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:01,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377638773] [2024-11-24 00:04:01,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:01,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:02,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377638773] [2024-11-24 00:04:02,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377638773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:02,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:02,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:04:02,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178972745] [2024-11-24 00:04:02,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:02,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:04:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:02,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:04:02,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:02,422 INFO L87 Difference]: Start difference. First operand 732 states and 975 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:02,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:02,927 INFO L93 Difference]: Finished difference Result 1306 states and 1748 transitions. [2024-11-24 00:04:02,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:04:02,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-24 00:04:02,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:02,931 INFO L225 Difference]: With dead ends: 1306 [2024-11-24 00:04:02,931 INFO L226 Difference]: Without dead ends: 662 [2024-11-24 00:04:02,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:02,933 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 63 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:02,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 509 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:04:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-24 00:04:03,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2024-11-24 00:04:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 602 states have (on average 1.3073089700996678) internal successors, (787), 608 states have internal predecessors, (787), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:04:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 877 transitions. [2024-11-24 00:04:03,014 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 877 transitions. Word has length 110 [2024-11-24 00:04:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:03,015 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 877 transitions. [2024-11-24 00:04:03,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 877 transitions. [2024-11-24 00:04:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:04:03,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:03,017 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:03,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:04:03,017 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:03,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1363964450, now seen corresponding path program 1 times [2024-11-24 00:04:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:03,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430548589] [2024-11-24 00:04:03,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:04,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:04,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430548589] [2024-11-24 00:04:04,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430548589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:04,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:04,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:04:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733589210] [2024-11-24 00:04:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:04,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:04:04,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:04,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:04:04,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:04,178 INFO L87 Difference]: Start difference. First operand 660 states and 877 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:04,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:04,950 INFO L93 Difference]: Finished difference Result 1228 states and 1633 transitions. [2024-11-24 00:04:04,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:04:04,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-24 00:04:04,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:04,954 INFO L225 Difference]: With dead ends: 1228 [2024-11-24 00:04:04,954 INFO L226 Difference]: Without dead ends: 656 [2024-11-24 00:04:04,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:04,956 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 66 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:04,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 627 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:04:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-24 00:04:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 654. [2024-11-24 00:04:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 596 states have (on average 1.3020134228187918) internal successors, (776), 602 states have internal predecessors, (776), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:04:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 866 transitions. [2024-11-24 00:04:05,011 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 866 transitions. Word has length 111 [2024-11-24 00:04:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:05,012 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 866 transitions. [2024-11-24 00:04:05,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 866 transitions. [2024-11-24 00:04:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:04:05,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:05,014 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:05,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:04:05,014 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:05,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 555859810, now seen corresponding path program 1 times [2024-11-24 00:04:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:05,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424519779] [2024-11-24 00:04:05,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:04:05,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560813932] [2024-11-24 00:04:05,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:05,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:05,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:05,107 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:05,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:04:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:04:05,931 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:04:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:04:06,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:04:06,450 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:04:06,452 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:04:06,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 00:04:06,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 00:04:06,661 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:06,709 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:04:06,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:04:06 BoogieIcfgContainer [2024-11-24 00:04:06,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:04:06,714 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:04:06,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:04:06,714 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:04:06,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:05" (3/4) ... [2024-11-24 00:04:06,717 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:04:06,718 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:04:06,719 INFO L158 Benchmark]: Toolchain (without parser) took 62710.73ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 93.2MB in the beginning and 243.1MB in the end (delta: -149.9MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-11-24 00:04:06,719 INFO L158 Benchmark]: CDTParser took 1.61ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:04:06,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.19ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 76.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:04:06,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.11ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 72.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:04:06,720 INFO L158 Benchmark]: Boogie Preprocessor took 101.87ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 69.1MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:04:06,720 INFO L158 Benchmark]: RCFGBuilder took 1221.18ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 85.9MB in the end (delta: -17.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-24 00:04:06,721 INFO L158 Benchmark]: TraceAbstraction took 60875.55ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 85.4MB in the beginning and 243.1MB in the end (delta: -157.7MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2024-11-24 00:04:06,721 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 335.5MB. Free memory was 243.1MB in the beginning and 243.1MB in the end (delta: 21.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:04:06,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.61ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.19ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 76.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.11ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 72.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 101.87ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 69.1MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1221.18ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 85.9MB in the end (delta: -17.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * TraceAbstraction took 60875.55ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 85.4MB in the beginning and 243.1MB in the end (delta: -157.7MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 335.5MB. Free memory was 243.1MB in the beginning and 243.1MB in the end (delta: 21.5kB). 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 bitwiseOr at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 106, overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 128, 0, 25, 4, 127.625, 0.8, 128.75, 24.8, -128, 64, 5, 1.5 }; [L51] unsigned short int last_1_WrapperStruct00_var_1_1 = 128; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_1=128] [L110] isInitial = 1 [L111] FCALL initially() [L113] CALL updateLastVariables() [L103] EXPR WrapperStruct00.var_1_1 [L103] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L113] RET updateLastVariables() [L114] CALL updateVariables() [L84] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L86] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L87] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ushort() [L88] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L89] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L90] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L92] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L93] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_4 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_4 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L94] WrapperStruct00.var_1_10 = __VERIFIER_nondet_double() [L95] EXPR WrapperStruct00.var_1_10 [L95] EXPR WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L95] EXPR WrapperStruct00.var_1_10 [L95] EXPR WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L95] EXPR (WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L95] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L95] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L96] WrapperStruct00.var_1_11 = __VERIFIER_nondet_double() [L97] EXPR WrapperStruct00.var_1_11 [L97] EXPR WrapperStruct00.var_1_11 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F [L97] EXPR WrapperStruct00.var_1_11 [L97] EXPR WrapperStruct00.var_1_11 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L97] EXPR (WrapperStruct00.var_1_11 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L97] CALL assume_abort_if_not((WrapperStruct00.var_1_11 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L97] RET assume_abort_if_not((WrapperStruct00.var_1_11 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L98] WrapperStruct00.var_1_16 = __VERIFIER_nondet_char() [L99] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L100] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L114] RET updateVariables() [L115] CALL step() [L55] WrapperStruct00.var_1_14 = 200 [L56] EXPR WrapperStruct00.var_1_16 [L56] WrapperStruct00.var_1_15 = WrapperStruct00.var_1_16 [L57] EXPR WrapperStruct00.var_1_10 [L57] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_10 [L58] EXPR WrapperStruct00.var_1_3 [L58] EXPR WrapperStruct00.var_1_4 [L58] signed long int stepLocal_0 = WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4; [L59] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_0=12] [L59] COND FALSE !(WrapperStruct00.var_1_2) [L62] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_0=12] [L62] EXPR (((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_0=12] [L62] COND TRUE stepLocal_0 >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1)))) [L63] EXPR WrapperStruct00.var_1_4 [L63] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_4 [L68] EXPR WrapperStruct00.var_1_3 [L68] EXPR WrapperStruct00.var_1_1 [L68] signed long int stepLocal_2 = WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1; [L69] EXPR WrapperStruct00.var_1_14 [L69] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_2=27] [L69] EXPR WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_2=27] [L69] signed long int stepLocal_1 = WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15; [L70] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_1=1, stepLocal_2=27] [L70] COND FALSE !(WrapperStruct00.var_1_15 <= stepLocal_2) [L77] EXPR WrapperStruct00.var_1_10 [L77] WrapperStruct00.var_1_8 = WrapperStruct00.var_1_10 [L79] EXPR WrapperStruct00.var_1_15 [L79] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128, stepLocal_1=1] [L79] COND FALSE !(WrapperStruct00.var_1_15 > WrapperStruct00.var_1_15) [L115] RET step() [L116] CALL, EXPR property() [L106] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3))) [L106] EXPR WrapperStruct00.var_1_3 [L106] EXPR WrapperStruct00.var_1_4 [L106] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR (((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR ((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)) [L106] EXPR WrapperStruct00.var_1_1 [L106] EXPR WrapperStruct00.var_1_4 [L106] EXPR ((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10))) [L106] EXPR WrapperStruct00.var_1_15 [L106] EXPR WrapperStruct00.var_1_3 [L106] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR (WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)) [L106] EXPR WrapperStruct00.var_1_8 [L106] EXPR WrapperStruct00.var_1_10 [L106] EXPR (WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)))) && ((WrapperStruct00.var_1_15 > WrapperStruct00.var_1_15) ? (WrapperStruct00.var_1_12 == ((double) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)))) && ((WrapperStruct00.var_1_15 > WrapperStruct00.var_1_15) ? (WrapperStruct00.var_1_12 == ((double) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_14 == ((signed short int) 200)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR ((((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)))) && ((WrapperStruct00.var_1_15 > WrapperStruct00.var_1_15) ? (WrapperStruct00.var_1_12 == ((double) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_14 == ((signed short int) 200))) && (WrapperStruct00.var_1_15 == ((signed char) WrapperStruct00.var_1_16)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106] EXPR (((((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)))) && ((WrapperStruct00.var_1_15 > WrapperStruct00.var_1_15) ? (WrapperStruct00.var_1_12 == ((double) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_14 == ((signed short int) 200))) && (WrapperStruct00.var_1_15 == ((signed char) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_17 == ((double) WrapperStruct00.var_1_10)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L106-L107] return (((((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) (((((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) < 0 ) ? -((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))) : ((((WrapperStruct00.var_1_3) < 0 ) ? -(WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_3))))))) : (((WrapperStruct00.var_1_3 / WrapperStruct00.var_1_4) >= (((((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) < ((~ last_1_WrapperStruct00_var_1_1))) ? ((last_1_WrapperStruct00_var_1_1 * WrapperStruct00.var_1_15)) : ((~ last_1_WrapperStruct00_var_1_1))))) ? (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((unsigned short int) WrapperStruct00.var_1_3)))) && ((WrapperStruct00.var_1_15 <= (WrapperStruct00.var_1_3 + WrapperStruct00.var_1_1)) ? ((WrapperStruct00.var_1_1 == (WrapperStruct00.var_1_14 ^ WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_8 == ((double) (((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10))) + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((double) WrapperStruct00.var_1_10)))) && ((WrapperStruct00.var_1_15 > WrapperStruct00.var_1_15) ? (WrapperStruct00.var_1_12 == ((double) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_14 == ((signed short int) 200))) && (WrapperStruct00.var_1_15 == ((signed char) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_17 == ((double) WrapperStruct00.var_1_10)) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_1=128] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 112 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.7s, OverallIterations: 22, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3225 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3217 mSDsluCounter, 12481 SdHoareTripleChecker+Invalid, 24.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9420 mSDsCounter, 327 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9245 IncrementalHoareTripleChecker+Invalid, 9572 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 327 mSolverCounterUnsat, 3061 mSDtfsCounter, 9245 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1085 GetRequests, 933 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred in iteration=19, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 1564 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 3368 NumberOfCodeBlocks, 3368 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2253 ConstructedInterpolants, 13 QuantifiedInterpolants, 10359 SizeOfPredicates, 48 NumberOfNonLiveVariables, 3332 ConjunctsInSsa, 217 ConjunctsInUnsatCore, 21 InterpolantComputations, 20 PerfectInterpolantSequences, 4608/4620 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:04:06,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:04:09,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:04:09,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:04:09,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:04:09,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:04:09,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:04:09,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:04:09,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:04:09,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:04:09,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:04:09,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:04:09,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:04:09,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:04:09,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:04:09,509 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:04:09,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:04:09,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:04:09,510 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:04:09,511 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:04:09,511 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:04:09,511 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:04:09,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:04:09,511 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:04:09,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:04:09,511 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:04:09,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:04:09,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:04:09,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:04:09,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:09,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:04:09,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:04:09,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:04:09,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:04:09,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:09,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:04:09,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:04:09,514 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:04:09,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:04:09,515 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:04:09,515 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:04:09,515 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:04:09,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:04:09,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:04:09,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:04:09,515 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_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09 [2024-11-24 00:04:09,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:04:09,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:04:09,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:04:09,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:04:09,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:04:09,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i [2024-11-24 00:04:12,797 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/d0f994345/5441f3d3c95543ce832ad3defeb2336b/FLAG87ded955d [2024-11-24 00:04:13,150 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:04:13,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i [2024-11-24 00:04:13,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/d0f994345/5441f3d3c95543ce832ad3defeb2336b/FLAG87ded955d [2024-11-24 00:04:13,180 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/data/d0f994345/5441f3d3c95543ce832ad3defeb2336b [2024-11-24 00:04:13,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:04:13,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:04:13,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:04:13,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:04:13,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:04:13,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d3da6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13, skipping insertion in model container [2024-11-24 00:04:13,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:04:13,411 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_dc50961b-d13c-4202-9abf-43c6efce954f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i[916,929] [2024-11-24 00:04:13,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:04:13,543 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:04:13,556 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_dc50961b-d13c-4202-9abf-43c6efce954f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i[916,929] [2024-11-24 00:04:13,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:04:13,683 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:04:13,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13 WrapperNode [2024-11-24 00:04:13,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:04:13,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:04:13,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:04:13,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:04:13,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,774 INFO L138 Inliner]: procedures = 34, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 488 [2024-11-24 00:04:13,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:04:13,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:04:13,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:04:13,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:04:13,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,843 INFO L175 MemorySlicer]: Split 131 memory accesses to 2 slices as follows [2, 129]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-11-24 00:04:13,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,886 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:04:13,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:04:13,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:04:13,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:04:13,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (1/1) ... [2024-11-24 00:04:13,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:13,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:13,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:04:13,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:04:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:04:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-24 00:04:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-24 00:04:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-24 00:04:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:04:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 00:04:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 00:04:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-24 00:04:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-24 00:04:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-24 00:04:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-24 00:04:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:04:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:04:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:04:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:04:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:04:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:04:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 00:04:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 00:04:14,190 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:04:14,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:04:15,868 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-24 00:04:15,868 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:04:15,881 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:04:15,881 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:04:15,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:04:15 BoogieIcfgContainer [2024-11-24 00:04:15,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:04:15,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:04:15,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:04:15,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:04:15,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:04:13" (1/3) ... [2024-11-24 00:04:15,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f96d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:04:15, skipping insertion in model container [2024-11-24 00:04:15,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:13" (2/3) ... [2024-11-24 00:04:15,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f96d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:04:15, skipping insertion in model container [2024-11-24 00:04:15,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:04:15" (3/3) ... [2024-11-24 00:04:15,894 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-83.i [2024-11-24 00:04:15,911 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:04:15,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-83.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:04:15,981 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:04:16,003 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;@e61ff5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:04:16,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:04:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 89 states have (on average 1.449438202247191) internal successors, (129), 90 states have internal predecessors, (129), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:04:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:16,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:16,018 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:16,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:16,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:16,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1933956208, now seen corresponding path program 1 times [2024-11-24 00:04:16,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:16,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534764741] [2024-11-24 00:04:16,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:16,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:16,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:16,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:16,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:04:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:16,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:04:16,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:16,644 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-24 00:04:16,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:16,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:16,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534764741] [2024-11-24 00:04:16,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534764741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:16,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:16,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:04:16,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914680944] [2024-11-24 00:04:16,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:16,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:04:16,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:16,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:04:16,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:04:16,679 INFO L87 Difference]: Start difference. First operand has 103 states, 89 states have (on average 1.449438202247191) internal successors, (129), 90 states have internal predecessors, (129), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:16,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:16,708 INFO L93 Difference]: Finished difference Result 199 states and 307 transitions. [2024-11-24 00:04:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:04:16,710 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-24 00:04:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:16,717 INFO L225 Difference]: With dead ends: 199 [2024-11-24 00:04:16,717 INFO L226 Difference]: Without dead ends: 99 [2024-11-24 00:04:16,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:04:16,727 INFO L435 NwaCegarLoop]: 138 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, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:16,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-24 00:04:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-24 00:04:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 86 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:04:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2024-11-24 00:04:16,789 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 104 [2024-11-24 00:04:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:16,790 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2024-11-24 00:04:16,790 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2024-11-24 00:04:16,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:16,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:16,796 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:16,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 00:04:17,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:17,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:17,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:17,002 INFO L85 PathProgramCache]: Analyzing trace with hash 679711970, now seen corresponding path program 1 times [2024-11-24 00:04:17,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746813847] [2024-11-24 00:04:17,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:17,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:17,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:17,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:17,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:04:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:17,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:04:17,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-24 00:04:17,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:17,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:17,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746813847] [2024-11-24 00:04:17,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746813847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:17,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:17,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:04:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519723279] [2024-11-24 00:04:17,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:17,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:04:17,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:17,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:04:17,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:17,527 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:17,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:17,659 INFO L93 Difference]: Finished difference Result 197 states and 276 transitions. [2024-11-24 00:04:17,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:04:17,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-24 00:04:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:17,666 INFO L225 Difference]: With dead ends: 197 [2024-11-24 00:04:17,667 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 00:04:17,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:17,668 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:17,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 00:04:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-24 00:04:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:04:17,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 140 transitions. [2024-11-24 00:04:17,679 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 140 transitions. Word has length 104 [2024-11-24 00:04:17,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:17,680 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 140 transitions. [2024-11-24 00:04:17,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:04:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 140 transitions. [2024-11-24 00:04:17,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:17,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:17,684 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:17,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:17,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:17,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:17,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:17,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1259450076, now seen corresponding path program 1 times [2024-11-24 00:04:17,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:17,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177942861] [2024-11-24 00:04:17,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:17,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:17,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:17,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:17,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:04:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:18,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:04:18,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:18,372 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:18,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:18,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177942861] [2024-11-24 00:04:18,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177942861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:18,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:18,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:04:18,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059647301] [2024-11-24 00:04:18,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:18,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:18,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:18,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:18,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:18,375 INFO L87 Difference]: Start difference. First operand 101 states and 140 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:18,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:18,457 INFO L93 Difference]: Finished difference Result 204 states and 284 transitions. [2024-11-24 00:04:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:18,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:04:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:18,459 INFO L225 Difference]: With dead ends: 204 [2024-11-24 00:04:18,459 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 00:04:18,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:18,461 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:18,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 516 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 00:04:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-24 00:04:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 92 states have (on average 1.326086956521739) internal successors, (122), 92 states have internal predecessors, (122), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:04:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2024-11-24 00:04:18,471 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 104 [2024-11-24 00:04:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:18,472 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2024-11-24 00:04:18,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:18,472 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2024-11-24 00:04:18,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:18,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:18,474 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:18,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:18,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:18,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:18,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash -579391706, now seen corresponding path program 1 times [2024-11-24 00:04:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:18,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341509482] [2024-11-24 00:04:18,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:18,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:18,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:18,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:18,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:04:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:19,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:04:19,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:19,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:19,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341509482] [2024-11-24 00:04:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341509482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:19,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:04:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160036652] [2024-11-24 00:04:19,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:19,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:04:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:19,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:04:19,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:19,222 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:19,346 INFO L93 Difference]: Finished difference Result 210 states and 289 transitions. [2024-11-24 00:04:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:04:19,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:04:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:19,350 INFO L225 Difference]: With dead ends: 210 [2024-11-24 00:04:19,350 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:04:19,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:19,356 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:19,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 635 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:19,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:04:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-24 00:04:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 94 states have internal predecessors, (124), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:04:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 146 transitions. [2024-11-24 00:04:19,373 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 146 transitions. Word has length 104 [2024-11-24 00:04:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:19,373 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 146 transitions. [2024-11-24 00:04:19,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 146 transitions. [2024-11-24 00:04:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:19,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:19,381 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:19,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:19,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:19,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:19,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1195615656, now seen corresponding path program 1 times [2024-11-24 00:04:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518490135] [2024-11-24 00:04:19,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:19,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:19,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:19,589 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:19,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 00:04:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:20,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:04:20,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:20,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:20,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:20,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518490135] [2024-11-24 00:04:20,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518490135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:20,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:20,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:04:20,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599833121] [2024-11-24 00:04:20,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:20,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:04:20,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:20,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:04:20,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:20,142 INFO L87 Difference]: Start difference. First operand 107 states and 146 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:20,282 INFO L93 Difference]: Finished difference Result 214 states and 293 transitions. [2024-11-24 00:04:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:04:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:04:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:20,285 INFO L225 Difference]: With dead ends: 214 [2024-11-24 00:04:20,286 INFO L226 Difference]: Without dead ends: 110 [2024-11-24 00:04:20,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:20,288 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:20,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 755 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-24 00:04:20,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2024-11-24 00:04:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 96 states have (on average 1.3125) internal successors, (126), 96 states have internal predecessors, (126), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:04:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 148 transitions. [2024-11-24 00:04:20,309 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 148 transitions. Word has length 104 [2024-11-24 00:04:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:20,310 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 148 transitions. [2024-11-24 00:04:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 148 transitions. [2024-11-24 00:04:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:20,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:20,316 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:20,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 00:04:20,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:20,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:20,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:20,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1197462698, now seen corresponding path program 1 times [2024-11-24 00:04:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:20,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827182156] [2024-11-24 00:04:20,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:20,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:20,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:20,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:20,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 00:04:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:21,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:04:21,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:21,101 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 98 treesize of output 97 [2024-11-24 00:04:21,448 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 160 treesize of output 138 [2024-11-24 00:04:21,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:04:21,898 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 24 [2024-11-24 00:04:21,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:21,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 28 [2024-11-24 00:04:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:22,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:22,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:22,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827182156] [2024-11-24 00:04:22,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827182156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:22,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:22,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:04:22,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136022812] [2024-11-24 00:04:22,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:22,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:04:22,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:22,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:04:22,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:22,054 INFO L87 Difference]: Start difference. First operand 109 states and 148 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:26,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:04:31,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:04:34,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:04:38,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:04:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:43,225 INFO L93 Difference]: Finished difference Result 423 states and 575 transitions. [2024-11-24 00:04:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:04:43,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:04:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:43,231 INFO L225 Difference]: With dead ends: 423 [2024-11-24 00:04:43,231 INFO L226 Difference]: Without dead ends: 317 [2024-11-24 00:04:43,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:04:43,232 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 218 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:43,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 745 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 528 Invalid, 2 Unknown, 0 Unchecked, 20.8s Time] [2024-11-24 00:04:43,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-24 00:04:43,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 159. [2024-11-24 00:04:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 133 states have (on average 1.2932330827067668) internal successors, (172), 133 states have internal predecessors, (172), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 00:04:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 216 transitions. [2024-11-24 00:04:43,258 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 216 transitions. Word has length 104 [2024-11-24 00:04:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:43,258 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 216 transitions. [2024-11-24 00:04:43,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 216 transitions. [2024-11-24 00:04:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:43,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:43,260 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:43,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-24 00:04:43,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:43,460 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:43,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1338011308, now seen corresponding path program 1 times [2024-11-24 00:04:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:43,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407617429] [2024-11-24 00:04:43,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:43,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:43,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:43,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:43,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 00:04:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:43,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:04:43,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:43,975 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 100 treesize of output 99 [2024-11-24 00:04:44,313 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 150 treesize of output 132 [2024-11-24 00:04:44,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:04:45,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:45,118 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 49 treesize of output 58 [2024-11-24 00:04:45,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:45,550 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 59 treesize of output 25 [2024-11-24 00:04:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:04:45,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:45,793 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:45,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407617429] [2024-11-24 00:04:45,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407617429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:45,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:45,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:04:45,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489791161] [2024-11-24 00:04:45,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:45,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:04:45,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:45,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:04:45,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:45,794 INFO L87 Difference]: Start difference. First operand 159 states and 216 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:52,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:04:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:58,550 INFO L93 Difference]: Finished difference Result 384 states and 516 transitions. [2024-11-24 00:04:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:04:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:04:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:58,554 INFO L225 Difference]: With dead ends: 384 [2024-11-24 00:04:58,554 INFO L226 Difference]: Without dead ends: 278 [2024-11-24 00:04:58,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:04:58,555 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:58,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 457 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 369 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2024-11-24 00:04:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-24 00:04:58,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 180. [2024-11-24 00:04:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 153 states have (on average 1.2941176470588236) internal successors, (198), 153 states have internal predecessors, (198), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 00:04:58,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 242 transitions. [2024-11-24 00:04:58,579 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 242 transitions. Word has length 104 [2024-11-24 00:04:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:58,579 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 242 transitions. [2024-11-24 00:04:58,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:04:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 242 transitions. [2024-11-24 00:04:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:04:58,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:58,581 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:58,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:58,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:58,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:58,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:58,782 INFO L85 PathProgramCache]: Analyzing trace with hash -250336594, now seen corresponding path program 1 times [2024-11-24 00:04:58,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634919727] [2024-11-24 00:04:58,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:58,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:04:58,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:58,785 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:04:58,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-24 00:04:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:59,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:04:59,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:59,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:04:59,706 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 53 treesize of output 20 [2024-11-24 00:04:59,890 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 48 treesize of output 30 [2024-11-24 00:05:04,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:04,278 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 35 treesize of output 37 [2024-11-24 00:05:04,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:04,983 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 70 treesize of output 81 [2024-11-24 00:05:05,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:05,506 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 88 treesize of output 94 [2024-11-24 00:05:05,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:05,723 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 103 treesize of output 94 [2024-11-24 00:05:06,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:06,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 83 treesize of output 35 [2024-11-24 00:05:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 174 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 00:05:06,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:05:06,615 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:06,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634919727] [2024-11-24 00:05:06,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634919727] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:06,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:05:06,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-24 00:05:06,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731569974] [2024-11-24 00:05:06,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:06,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:05:06,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:06,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:05:06,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-24 00:05:06,617 INFO L87 Difference]: Start difference. First operand 180 states and 242 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:05:06,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:06,804 INFO L93 Difference]: Finished difference Result 287 states and 389 transitions. [2024-11-24 00:05:06,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:05:06,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:05:06,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:06,810 INFO L225 Difference]: With dead ends: 287 [2024-11-24 00:05:06,810 INFO L226 Difference]: Without dead ends: 181 [2024-11-24 00:05:06,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-24 00:05:06,811 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:06,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:05:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-24 00:05:06,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-24 00:05:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 154 states have (on average 1.2922077922077921) internal successors, (199), 154 states have internal predecessors, (199), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 00:05:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 243 transitions. [2024-11-24 00:05:06,850 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 243 transitions. Word has length 104 [2024-11-24 00:05:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:06,850 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 243 transitions. [2024-11-24 00:05:06,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:05:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 243 transitions. [2024-11-24 00:05:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:05:06,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:06,853 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:06,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:05:07,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:05:07,053 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:07,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash 770731760, now seen corresponding path program 1 times [2024-11-24 00:05:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:07,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21827861] [2024-11-24 00:05:07,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:07,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:05:07,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:07,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:05:07,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-24 00:05:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:07,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:05:07,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:07,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:05:07,730 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 [2024-11-24 00:05:12,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:12,097 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 61 treesize of output 40 [2024-11-24 00:05:12,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:12,351 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 50 treesize of output 40 [2024-11-24 00:05:12,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:12,750 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 75 treesize of output 80 [2024-11-24 00:05:13,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:13,011 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 88 treesize of output 99 [2024-11-24 00:05:13,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:13,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 132 [2024-11-24 00:05:14,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:14,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 156 treesize of output 74 [2024-11-24 00:05:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 00:05:14,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:05:14,422 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:14,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21827861] [2024-11-24 00:05:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21827861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:05:14,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362287685] [2024-11-24 00:05:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:14,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:05:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:14,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:05:14,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2024-11-24 00:05:14,424 INFO L87 Difference]: Start difference. First operand 181 states and 243 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:05:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:23,860 INFO L93 Difference]: Finished difference Result 440 states and 585 transitions. [2024-11-24 00:05:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:05:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-24 00:05:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:23,863 INFO L225 Difference]: With dead ends: 440 [2024-11-24 00:05:23,863 INFO L226 Difference]: Without dead ends: 333 [2024-11-24 00:05:23,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=81, Invalid=190, Unknown=1, NotChecked=0, Total=272 [2024-11-24 00:05:23,865 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 324 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:23,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 736 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-24 00:05:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-24 00:05:23,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 327. [2024-11-24 00:05:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 291 states have (on average 1.29553264604811) internal successors, (377), 293 states have internal predecessors, (377), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:05:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 433 transitions. [2024-11-24 00:05:23,911 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 433 transitions. Word has length 104 [2024-11-24 00:05:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:23,914 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 433 transitions. [2024-11-24 00:05:23,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:05:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 433 transitions. [2024-11-24 00:05:23,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:05:23,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:23,916 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:23,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:05:24,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:05:24,117 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:24,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:24,117 INFO L85 PathProgramCache]: Analyzing trace with hash 636718254, now seen corresponding path program 1 times [2024-11-24 00:05:24,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:24,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053455435] [2024-11-24 00:05:24,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:24,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:05:24,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:24,122 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:05:24,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 00:05:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:24,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:05:24,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:24,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:05:24,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-24 00:05:28,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:28,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 39 [2024-11-24 00:05:37,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:37,349 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 47 treesize of output 52 [2024-11-24 00:05:38,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:38,037 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 64 treesize of output 28 [2024-11-24 00:05:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 138 proven. 12 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-24 00:05:38,704 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:05:39,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:39,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053455435] [2024-11-24 00:05:39,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053455435] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:39,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:05:39,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-11-24 00:05:39,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679127511] [2024-11-24 00:05:39,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:39,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:05:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:39,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:05:39,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=120, Unknown=3, NotChecked=0, Total=156 [2024-11-24 00:05:39,088 INFO L87 Difference]: Start difference. First operand 327 states and 433 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:05:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:39,267 INFO L93 Difference]: Finished difference Result 589 states and 784 transitions. [2024-11-24 00:05:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:05:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-24 00:05:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:39,271 INFO L225 Difference]: With dead ends: 589 [2024-11-24 00:05:39,271 INFO L226 Difference]: Without dead ends: 338 [2024-11-24 00:05:39,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=38, Invalid=141, Unknown=3, NotChecked=0, Total=182 [2024-11-24 00:05:39,273 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 25 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:39,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 419 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:05:39,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-24 00:05:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 328. [2024-11-24 00:05:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 292 states have (on average 1.2910958904109588) internal successors, (377), 294 states have internal predecessors, (377), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:05:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 433 transitions. [2024-11-24 00:05:39,305 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 433 transitions. Word has length 104 [2024-11-24 00:05:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:39,306 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 433 transitions. [2024-11-24 00:05:39,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:05:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 433 transitions. [2024-11-24 00:05:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:05:39,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:39,308 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:39,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 00:05:39,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:05:39,512 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:39,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1411815602, now seen corresponding path program 1 times [2024-11-24 00:05:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:39,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213466558] [2024-11-24 00:05:39,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:39,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:05:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:39,515 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:05:39,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-24 00:05:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:40,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 00:05:40,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:40,085 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 96 treesize of output 95 [2024-11-24 00:05:40,322 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 170 treesize of output 144 [2024-11-24 00:05:40,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:05:41,206 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 53 treesize of output 20 [2024-11-24 00:05:41,512 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 53 treesize of output 20 [2024-11-24 00:05:41,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-24 00:05:42,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:42,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 60 [2024-11-24 00:05:42,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:42,923 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 91 treesize of output 79 [2024-11-24 00:05:43,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:43,377 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 96 treesize of output 99 [2024-11-24 00:05:48,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:48,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 116 treesize of output 56 [2024-11-24 00:05:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 154 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-24 00:05:48,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:05:52,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213466558] [2024-11-24 00:05:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213466558] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:52,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:05:52,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 19 [2024-11-24 00:05:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340590489] [2024-11-24 00:05:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:52,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:05:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:52,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:05:52,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=263, Unknown=1, NotChecked=0, Total=342 [2024-11-24 00:05:52,141 INFO L87 Difference]: Start difference. First operand 328 states and 433 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:05:54,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:05:59,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:06:04,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:06:10,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:06:25,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:06:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:26,056 INFO L93 Difference]: Finished difference Result 737 states and 977 transitions. [2024-11-24 00:06:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-24 00:06:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:26,064 INFO L225 Difference]: With dead ends: 737 [2024-11-24 00:06:26,064 INFO L226 Difference]: Without dead ends: 494 [2024-11-24 00:06:26,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 187 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=93, Invalid=326, Unknown=1, NotChecked=0, Total=420 [2024-11-24 00:06:26,065 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 58 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:26,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 473 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 32.7s Time] [2024-11-24 00:06:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-24 00:06:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 359. [2024-11-24 00:06:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 323 states have (on average 1.3188854489164086) internal successors, (426), 325 states have internal predecessors, (426), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:06:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 482 transitions. [2024-11-24 00:06:26,105 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 482 transitions. Word has length 105 [2024-11-24 00:06:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:26,105 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 482 transitions. [2024-11-24 00:06:26,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:06:26,107 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 482 transitions. [2024-11-24 00:06:26,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:06:26,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:26,108 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:26,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:06:26,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:06:26,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:26,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1721534730, now seen corresponding path program 1 times [2024-11-24 00:06:26,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:06:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293397327] [2024-11-24 00:06:26,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:26,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:06:26,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:06:26,311 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:06:26,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-24 00:06:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:26,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:06:26,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:26,842 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 91 treesize of output 90 [2024-11-24 00:06:27,104 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 195 treesize of output 159 [2024-11-24 00:06:27,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:06:27,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2024-11-24 00:06:27,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-24 00:06:32,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:32,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-24 00:06:33,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 42 [2024-11-24 00:06:34,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:34,129 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 90 treesize of output 48 [2024-11-24 00:06:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 138 proven. 12 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-24 00:06:34,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:06:35,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:06:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293397327] [2024-11-24 00:06:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293397327] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:35,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:35,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-24 00:06:35,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810937562] [2024-11-24 00:06:35,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:35,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:35,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:06:35,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:35,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=187, Unknown=1, NotChecked=0, Total=240 [2024-11-24 00:06:35,742 INFO L87 Difference]: Start difference. First operand 359 states and 482 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:06:41,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:06:43,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:43,601 INFO L93 Difference]: Finished difference Result 621 states and 834 transitions. [2024-11-24 00:06:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:06:43,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-24 00:06:43,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:43,607 INFO L225 Difference]: With dead ends: 621 [2024-11-24 00:06:43,607 INFO L226 Difference]: Without dead ends: 345 [2024-11-24 00:06:43,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=63, Invalid=242, Unknown=1, NotChecked=0, Total=306 [2024-11-24 00:06:43,608 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 13 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:43,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 376 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 153 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-24 00:06:43,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-24 00:06:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-24 00:06:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 311 states have internal predecessors, (403), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:06:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 459 transitions. [2024-11-24 00:06:43,653 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 459 transitions. Word has length 105 [2024-11-24 00:06:43,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:43,654 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 459 transitions. [2024-11-24 00:06:43,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:06:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 459 transitions. [2024-11-24 00:06:43,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:06:43,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:43,656 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:43,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-24 00:06:43,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:06:43,856 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:43,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1473855216, now seen corresponding path program 1 times [2024-11-24 00:06:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:06:43,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023372728] [2024-11-24 00:06:43,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:43,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:06:43,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:06:43,862 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:06:43,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-24 00:06:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:44,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:06:44,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:44,351 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 97 treesize of output 96 [2024-11-24 00:06:44,593 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 165 treesize of output 141 [2024-11-24 00:06:45,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:06:45,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-24 00:06:45,343 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 43 treesize of output 31 [2024-11-24 00:06:49,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:49,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 20 [2024-11-24 00:06:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:06:49,937 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:06:49,937 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:06:49,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023372728] [2024-11-24 00:06:49,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023372728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:49,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:49,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:49,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560900513] [2024-11-24 00:06:49,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:49,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:06:49,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:06:49,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:06:49,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2024-11-24 00:06:49,941 INFO L87 Difference]: Start difference. First operand 345 states and 459 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:06:58,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:02,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:06,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:10,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:14,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:19,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:23,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:07:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:28,313 INFO L93 Difference]: Finished difference Result 816 states and 1084 transitions. [2024-11-24 00:07:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:07:28,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-24 00:07:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:28,317 INFO L225 Difference]: With dead ends: 816 [2024-11-24 00:07:28,318 INFO L226 Difference]: Without dead ends: 554 [2024-11-24 00:07:28,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=30, Invalid=59, Unknown=1, NotChecked=0, Total=90 [2024-11-24 00:07:28,319 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 247 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:28,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 414 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 454 Invalid, 7 Unknown, 0 Unchecked, 38.0s Time] [2024-11-24 00:07:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-24 00:07:28,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 355. [2024-11-24 00:07:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 319 states have (on average 1.3103448275862069) internal successors, (418), 321 states have internal predecessors, (418), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:07:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 474 transitions. [2024-11-24 00:07:28,366 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 474 transitions. Word has length 105 [2024-11-24 00:07:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:28,367 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 474 transitions. [2024-11-24 00:07:28,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:07:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 474 transitions. [2024-11-24 00:07:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:07:28,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:28,372 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:28,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-24 00:07:28,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:07:28,573 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:28,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:28,573 INFO L85 PathProgramCache]: Analyzing trace with hash -494097669, now seen corresponding path program 1 times [2024-11-24 00:07:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:07:28,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899096009] [2024-11-24 00:07:28,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:28,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:07:28,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:07:28,577 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:07:28,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-24 00:07:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:29,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:07:29,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:29,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:07:30,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:30,350 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 133 treesize of output 79 [2024-11-24 00:07:34,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:34,844 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 147 treesize of output 95 [2024-11-24 00:07:35,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:35,655 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 187 treesize of output 129 [2024-11-24 00:07:36,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:36,299 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 195 treesize of output 138 [2024-11-24 00:07:36,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:36,590 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 257 treesize of output 179 [2024-11-24 00:07:38,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:38,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 460 treesize of output 160 [2024-11-24 00:07:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 112 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 00:07:38,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:39,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:07:39,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899096009] [2024-11-24 00:07:39,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899096009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:39,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [948447437] [2024-11-24 00:07:39,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:39,402 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:07:39,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:07:39,413 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:07:39,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-24 00:07:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:41,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 00:07:41,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:42,030 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 [2024-11-24 00:07:47,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:47,425 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 121 treesize of output 79 [2024-11-24 00:07:52,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:52,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 91 [2024-11-24 00:07:57,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:57,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 139 treesize of output 91 [2024-11-24 00:07:57,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:57,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 91 [2024-11-24 00:07:57,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:57,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 164 treesize of output 128 [2024-11-24 00:07:58,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:07:58,844 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 89 [2024-11-24 00:07:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 112 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 00:07:58,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:59,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [948447437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:59,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:07:59,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 20 [2024-11-24 00:07:59,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243168863] [2024-11-24 00:07:59,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:59,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:07:59,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:07:59,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:07:59,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=463, Unknown=3, NotChecked=0, Total=552 [2024-11-24 00:07:59,250 INFO L87 Difference]: Start difference. First operand 355 states and 474 transitions. Second operand has 21 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 7 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-24 00:08:06,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:10,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:23,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:27,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:39,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:43,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:47,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:51,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:55,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:08:59,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:03,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:07,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:34,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:35,127 INFO L93 Difference]: Finished difference Result 1040 states and 1379 transitions. [2024-11-24 00:09:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:09:35,129 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 7 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 106 [2024-11-24 00:09:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:35,132 INFO L225 Difference]: With dead ends: 1040 [2024-11-24 00:09:35,137 INFO L226 Difference]: Without dead ends: 778 [2024-11-24 00:09:35,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 247 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 46.5s TimeCoverageRelationStatistics Valid=233, Invalid=948, Unknown=9, NotChecked=0, Total=1190 [2024-11-24 00:09:35,138 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 986 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 223 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:35,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 730 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1174 Invalid, 15 Unknown, 0 Unchecked, 69.1s Time] [2024-11-24 00:09:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-24 00:09:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 724. [2024-11-24 00:09:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 655 states have (on average 1.3083969465648855) internal successors, (857), 660 states have internal predecessors, (857), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:09:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 959 transitions. [2024-11-24 00:09:35,233 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 959 transitions. Word has length 106 [2024-11-24 00:09:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:35,233 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 959 transitions. [2024-11-24 00:09:35,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 7 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-24 00:09:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 959 transitions. [2024-11-24 00:09:35,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:09:35,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:35,236 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:35,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-24 00:09:35,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-24 00:09:35,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:35,637 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:35,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 78483868, now seen corresponding path program 1 times [2024-11-24 00:09:35,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:35,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946717577] [2024-11-24 00:09:35,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:35,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:35,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:35,639 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:09:35,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-24 00:09:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:35,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:09:35,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:09:35,966 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:09:35,966 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:35,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946717577] [2024-11-24 00:09:35,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946717577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:35,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:35,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:09:35,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587256739] [2024-11-24 00:09:35,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:35,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:09:35,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:35,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:09:35,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:35,968 INFO L87 Difference]: Start difference. First operand 724 states and 959 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:09:36,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:36,075 INFO L93 Difference]: Finished difference Result 1270 states and 1689 transitions. [2024-11-24 00:09:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:09:36,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:09:36,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:36,079 INFO L225 Difference]: With dead ends: 1270 [2024-11-24 00:09:36,079 INFO L226 Difference]: Without dead ends: 710 [2024-11-24 00:09:36,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:36,081 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 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 [2024-11-24 00:09:36,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:09:36,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-24 00:09:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2024-11-24 00:09:36,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 641 states have (on average 1.3042121684867394) internal successors, (836), 646 states have internal predecessors, (836), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:09:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 938 transitions. [2024-11-24 00:09:36,153 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 938 transitions. Word has length 106 [2024-11-24 00:09:36,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:36,154 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 938 transitions. [2024-11-24 00:09:36,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:09:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 938 transitions. [2024-11-24 00:09:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:09:36,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:36,156 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:36,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-24 00:09:36,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:36,356 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:36,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1310187629, now seen corresponding path program 1 times [2024-11-24 00:09:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205486571] [2024-11-24 00:09:36,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:36,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:36,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:36,359 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:09:36,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-24 00:09:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:36,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:09:36,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:36,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:09:37,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-24 00:09:37,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:37,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 00:09:37,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:37,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 27 [2024-11-24 00:09:38,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:38,056 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 46 treesize of output 37 [2024-11-24 00:09:42,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:42,482 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 50 treesize of output 40 [2024-11-24 00:09:42,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2024-11-24 00:09:43,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:43,485 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 83 treesize of output 80 [2024-11-24 00:09:43,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:43,634 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 98 treesize of output 80 [2024-11-24 00:09:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 27 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-24 00:09:43,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:09:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:09:44,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:44,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205486571] [2024-11-24 00:09:44,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205486571] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:44,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:09:44,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-24 00:09:44,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714099671] [2024-11-24 00:09:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:44,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:09:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:44,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:09:44,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=135, Unknown=1, NotChecked=0, Total=182 [2024-11-24 00:09:44,347 INFO L87 Difference]: Start difference. First operand 710 states and 938 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:09:46,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:46,167 INFO L93 Difference]: Finished difference Result 1238 states and 1642 transitions. [2024-11-24 00:09:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:09:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:09:46,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:46,173 INFO L225 Difference]: With dead ends: 1238 [2024-11-24 00:09:46,173 INFO L226 Difference]: Without dead ends: 692 [2024-11-24 00:09:46,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=51, Invalid=158, Unknown=1, NotChecked=0, Total=210 [2024-11-24 00:09:46,175 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 108 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:46,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 255 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:09:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-24 00:09:46,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 690. [2024-11-24 00:09:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 621 states have (on average 1.2946859903381642) internal successors, (804), 626 states have internal predecessors, (804), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:09:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 906 transitions. [2024-11-24 00:09:46,281 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 906 transitions. Word has length 106 [2024-11-24 00:09:46,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:46,281 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 906 transitions. [2024-11-24 00:09:46,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:09:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 906 transitions. [2024-11-24 00:09:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:09:46,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:46,283 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:46,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-24 00:09:46,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:46,484 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:46,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash 66602109, now seen corresponding path program 1 times [2024-11-24 00:09:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314911561] [2024-11-24 00:09:46,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:46,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:46,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:46,489 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:09:46,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-24 00:09:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:46,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:09:46,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:09:46,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:09:46,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:46,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314911561] [2024-11-24 00:09:46,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314911561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:46,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:46,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:09:46,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480883025] [2024-11-24 00:09:46,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:46,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:09:46,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:46,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:09:46,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:09:46,856 INFO L87 Difference]: Start difference. First operand 690 states and 906 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:09:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:47,085 INFO L93 Difference]: Finished difference Result 1277 states and 1682 transitions. [2024-11-24 00:09:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:09:47,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-24 00:09:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:47,094 INFO L225 Difference]: With dead ends: 1277 [2024-11-24 00:09:47,094 INFO L226 Difference]: Without dead ends: 690 [2024-11-24 00:09:47,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:09:47,097 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:47,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 388 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:09:47,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-24 00:09:47,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2024-11-24 00:09:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 621 states have (on average 1.2914653784219001) internal successors, (802), 626 states have internal predecessors, (802), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:09:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 904 transitions. [2024-11-24 00:09:47,206 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 904 transitions. Word has length 106 [2024-11-24 00:09:47,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:47,207 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 904 transitions. [2024-11-24 00:09:47,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:09:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 904 transitions. [2024-11-24 00:09:47,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:09:47,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:47,208 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:47,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:09:47,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:47,409 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:47,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash -893671425, now seen corresponding path program 1 times [2024-11-24 00:09:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:47,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724334494] [2024-11-24 00:09:47,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:47,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:47,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:47,412 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:09:47,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-24 00:09:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:47,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:09:47,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:48,075 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 27 treesize of output 15 [2024-11-24 00:09:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:09:48,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:09:48,299 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:48,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724334494] [2024-11-24 00:09:48,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724334494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:48,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:48,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:09:48,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681539856] [2024-11-24 00:09:48,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:48,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:09:48,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:48,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:09:48,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:09:48,301 INFO L87 Difference]: Start difference. First operand 690 states and 904 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:09:56,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:56,818 INFO L93 Difference]: Finished difference Result 1428 states and 1873 transitions. [2024-11-24 00:09:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:09:56,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:09:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:56,822 INFO L225 Difference]: With dead ends: 1428 [2024-11-24 00:09:56,822 INFO L226 Difference]: Without dead ends: 902 [2024-11-24 00:09:56,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:09:56,824 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 36 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:56,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 448 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-24 00:09:56,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-24 00:09:56,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 717. [2024-11-24 00:09:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 648 states have (on average 1.2808641975308641) internal successors, (830), 653 states have internal predecessors, (830), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:09:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 932 transitions. [2024-11-24 00:09:56,920 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 932 transitions. Word has length 107 [2024-11-24 00:09:56,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:56,920 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 932 transitions. [2024-11-24 00:09:56,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:09:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 932 transitions. [2024-11-24 00:09:56,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:09:56,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:56,923 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:56,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-24 00:09:57,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:57,124 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:57,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1712352129, now seen corresponding path program 1 times [2024-11-24 00:09:57,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:57,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969510420] [2024-11-24 00:09:57,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:57,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:57,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:57,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:09:57,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-24 00:09:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:57,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:09:57,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:57,642 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 96 treesize of output 95 [2024-11-24 00:09:57,869 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 170 treesize of output 144 [2024-11-24 00:09:58,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:09:58,505 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 32 treesize of output 20 [2024-11-24 00:09:58,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-24 00:10:02,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:02,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 19 [2024-11-24 00:10:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:10:02,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:02,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:02,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969510420] [2024-11-24 00:10:02,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969510420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:02,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:02,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:10:02,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444392559] [2024-11-24 00:10:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:02,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:02,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:02,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:02,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2024-11-24 00:10:02,932 INFO L87 Difference]: Start difference. First operand 717 states and 932 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:10:08,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:16,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:20,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:23,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:26,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:32,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:36,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:40,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:44,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:48,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:52,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:56,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:59,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:59,658 INFO L93 Difference]: Finished difference Result 1618 states and 2108 transitions. [2024-11-24 00:10:59,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:59,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:10:59,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:59,663 INFO L225 Difference]: With dead ends: 1618 [2024-11-24 00:10:59,663 INFO L226 Difference]: Without dead ends: 1065 [2024-11-24 00:10:59,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=28, Invalid=61, Unknown=1, NotChecked=0, Total=90 [2024-11-24 00:10:59,665 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 197 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 33 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:59,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 540 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 439 Invalid, 7 Unknown, 0 Unchecked, 56.4s Time] [2024-11-24 00:10:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-24 00:10:59,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 737. [2024-11-24 00:10:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 668 states have (on average 1.284431137724551) internal successors, (858), 673 states have internal predecessors, (858), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:10:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 960 transitions. [2024-11-24 00:10:59,771 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 960 transitions. Word has length 107 [2024-11-24 00:10:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:59,772 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 960 transitions. [2024-11-24 00:10:59,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:10:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 960 transitions. [2024-11-24 00:10:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:10:59,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:59,774 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:59,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-24 00:10:59,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:59,974 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:59,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:59,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1202879039, now seen corresponding path program 1 times [2024-11-24 00:10:59,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:59,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464486330] [2024-11-24 00:10:59,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:59,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:59,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:59,979 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:10:59,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-24 00:11:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:00,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:11:00,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:00,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:11:00,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:11:00,594 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 25 treesize of output 10 [2024-11-24 00:11:04,608 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_151| (_ BitVec 64))) (= (select (select |c_#memory_int#1| |c_~#WrapperStruct00~0.base|) (bvadd (_ bv14 32) |c_~#WrapperStruct00~0.offset|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_151|))) is different from true [2024-11-24 00:11:04,693 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 24 [2024-11-24 00:11:08,720 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int#1| |c_~#WrapperStruct00~0.base|))) (and (exists ((|v_skolemized_q#valueAsBitvector_152| (_ BitVec 64))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_152|) (select .cse0 (bvadd (_ bv26 32) |c_~#WrapperStruct00~0.offset|)))) (exists ((|v_skolemized_q#valueAsBitvector_151| (_ BitVec 64))) (= (select .cse0 (bvadd (_ bv14 32) |c_~#WrapperStruct00~0.offset|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_151|))))) is different from true [2024-11-24 00:11:08,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:08,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 00:11:09,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:09,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 27 [2024-11-24 00:11:09,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:09,154 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 41 treesize of output 46 [2024-11-24 00:11:09,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:09,479 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 84 treesize of output 98 [2024-11-24 00:11:14,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:14,181 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 117 treesize of output 49 [2024-11-24 00:11:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 12 not checked. [2024-11-24 00:11:14,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:11:15,157 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:11:15,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464486330] [2024-11-24 00:11:15,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464486330] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:11:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-24 00:11:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28346499] [2024-11-24 00:11:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:15,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:11:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:11:15,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:11:15,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=63, Unknown=3, NotChecked=34, Total=132 [2024-11-24 00:11:15,159 INFO L87 Difference]: Start difference. First operand 737 states and 960 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:11:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:17,171 INFO L93 Difference]: Finished difference Result 1410 states and 1828 transitions. [2024-11-24 00:11:17,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:11:17,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:11:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:17,176 INFO L225 Difference]: With dead ends: 1410 [2024-11-24 00:11:17,176 INFO L226 Difference]: Without dead ends: 857 [2024-11-24 00:11:17,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=37, Invalid=78, Unknown=3, NotChecked=38, Total=156 [2024-11-24 00:11:17,178 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 114 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:17,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 351 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:11:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-24 00:11:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 732. [2024-11-24 00:11:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 663 states have (on average 1.2865761689291102) internal successors, (853), 668 states have internal predecessors, (853), 49 states have call successors, (49), 19 states have call predecessors, (49), 19 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-24 00:11:17,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 951 transitions. [2024-11-24 00:11:17,305 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 951 transitions. Word has length 107 [2024-11-24 00:11:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:17,306 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 951 transitions. [2024-11-24 00:11:17,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:11:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 951 transitions. [2024-11-24 00:11:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:11:17,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:17,308 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:17,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-24 00:11:17,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:17,509 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:17,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash -998070078, now seen corresponding path program 1 times [2024-11-24 00:11:17,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:11:17,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036500152] [2024-11-24 00:11:17,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:17,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:17,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:11:17,511 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:11:17,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-24 00:11:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:17,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:11:17,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:11:17,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:11:17,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:11:17,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036500152] [2024-11-24 00:11:17,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036500152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:17,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:17,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:17,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167759982] [2024-11-24 00:11:17,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:17,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:17,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:11:17,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:17,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:17,949 INFO L87 Difference]: Start difference. First operand 732 states and 951 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:11:18,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:18,071 INFO L93 Difference]: Finished difference Result 1292 states and 1685 transitions. [2024-11-24 00:11:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:18,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:11:18,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:18,081 INFO L225 Difference]: With dead ends: 1292 [2024-11-24 00:11:18,081 INFO L226 Difference]: Without dead ends: 724 [2024-11-24 00:11:18,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:18,083 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:18,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:11:18,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-24 00:11:18,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2024-11-24 00:11:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 655 states have (on average 1.283969465648855) internal successors, (841), 660 states have internal predecessors, (841), 49 states have call successors, (49), 19 states have call predecessors, (49), 19 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-24 00:11:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 939 transitions. [2024-11-24 00:11:18,196 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 939 transitions. Word has length 107 [2024-11-24 00:11:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:18,196 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 939 transitions. [2024-11-24 00:11:18,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:11:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 939 transitions. [2024-11-24 00:11:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:11:18,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:18,198 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:18,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-24 00:11:18,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:18,399 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:18,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2125652139, now seen corresponding path program 1 times [2024-11-24 00:11:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:11:18,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041162841] [2024-11-24 00:11:18,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:18,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:18,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:11:18,403 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:11:18,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-24 00:11:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:19,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:11:19,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:19,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:11:19,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 00:11:19,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:19,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-24 00:11:19,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:19,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 48 [2024-11-24 00:11:24,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:24,252 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 62 treesize of output 74 [2024-11-24 00:11:32,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:32,933 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 76 treesize of output 90 [2024-11-24 00:11:34,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 55 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 103 [2024-11-24 00:11:35,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:35,180 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 108 treesize of output 111 [2024-11-24 00:11:35,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:35,357 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 113 treesize of output 131 [2024-11-24 00:11:39,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:39,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 123 treesize of output 51 [2024-11-24 00:11:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 148 proven. 27 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 00:11:40,049 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:40,528 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:11:40,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:11:40,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041162841] [2024-11-24 00:11:40,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041162841] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:40,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:11:40,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-24 00:11:40,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950952919] [2024-11-24 00:11:40,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:40,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:11:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:11:40,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:11:40,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=204, Unknown=4, NotChecked=0, Total=272 [2024-11-24 00:11:40,530 INFO L87 Difference]: Start difference. First operand 724 states and 939 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:11:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:44,592 INFO L93 Difference]: Finished difference Result 1242 states and 1610 transitions. [2024-11-24 00:11:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:11:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:11:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:44,599 INFO L225 Difference]: With dead ends: 1242 [2024-11-24 00:11:44,599 INFO L226 Difference]: Without dead ends: 700 [2024-11-24 00:11:44,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=69, Invalid=233, Unknown=4, NotChecked=0, Total=306 [2024-11-24 00:11:44,602 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 51 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:44,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 404 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:11:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-24 00:11:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 672. [2024-11-24 00:11:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 603 states have (on average 1.2719734660033168) internal successors, (767), 608 states have internal predecessors, (767), 49 states have call successors, (49), 19 states have call predecessors, (49), 19 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-24 00:11:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 865 transitions. [2024-11-24 00:11:44,725 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 865 transitions. Word has length 107 [2024-11-24 00:11:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:44,726 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 865 transitions. [2024-11-24 00:11:44,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:11:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 865 transitions. [2024-11-24 00:11:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:11:44,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:44,728 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:44,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:44,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:44,928 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:44,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:44,929 INFO L85 PathProgramCache]: Analyzing trace with hash -403912191, now seen corresponding path program 1 times [2024-11-24 00:11:44,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:11:44,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666640202] [2024-11-24 00:11:44,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:44,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:44,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:11:44,931 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:11:44,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-24 00:11:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:45,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 00:11:45,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:46,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:11:46,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:46,879 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 131 treesize of output 77 [2024-11-24 00:11:51,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:51,413 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 150 treesize of output 83 [2024-11-24 00:11:52,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:52,044 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 170 treesize of output 133 [2024-11-24 00:11:52,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:52,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 193 treesize of output 145 [2024-11-24 00:11:52,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:52,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 255 treesize of output 186 [2024-11-24 00:11:54,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:54,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 463 treesize of output 157 [2024-11-24 00:11:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 121 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 00:11:54,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:55,571 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:11:55,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666640202] [2024-11-24 00:11:55,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666640202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:55,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [604219150] [2024-11-24 00:11:55,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:55,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:11:55,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:11:55,574 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:11:55,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-24 00:11:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:57,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 00:11:57,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:58,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:12:13,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:13,737 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 122 treesize of output 69 [2024-11-24 00:12:22,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:22,606 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 108 treesize of output 78 [2024-11-24 00:12:31,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:31,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 129 treesize of output 78 [2024-11-24 00:12:31,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:31,763 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 108 treesize of output 78 [2024-11-24 00:12:31,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:31,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 154 treesize of output 115 [2024-11-24 00:12:37,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:37,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 237 treesize of output 109 [2024-11-24 00:12:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 121 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 00:12:37,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:37,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [604219150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:37,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:12:37,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2024-11-24 00:12:37,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371612547] [2024-11-24 00:12:37,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:37,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 00:12:37,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:37,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 00:12:37,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=739, Unknown=6, NotChecked=0, Total=870 [2024-11-24 00:12:37,695 INFO L87 Difference]: Start difference. First operand 672 states and 865 transitions. Second operand has 27 states, 25 states have (on average 4.44) internal successors, (111), 22 states have internal predecessors, (111), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:12:49,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:53,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:36,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:39,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:39,753 INFO L93 Difference]: Finished difference Result 1600 states and 2051 transitions. [2024-11-24 00:13:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:13:39,760 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.44) internal successors, (111), 22 states have internal predecessors, (111), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 108 [2024-11-24 00:13:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:39,765 INFO L225 Difference]: With dead ends: 1600 [2024-11-24 00:13:39,765 INFO L226 Difference]: Without dead ends: 1084 [2024-11-24 00:13:39,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 245 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 60.2s TimeCoverageRelationStatistics Valid=509, Invalid=2032, Unknown=9, NotChecked=0, Total=2550 [2024-11-24 00:13:39,767 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 710 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 193 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:39,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 944 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2057 Invalid, 2 Unknown, 0 Unchecked, 42.8s Time] [2024-11-24 00:13:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-11-24 00:13:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 913. [2024-11-24 00:13:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 816 states have (on average 1.2708333333333333) internal successors, (1037), 823 states have internal predecessors, (1037), 68 states have call successors, (68), 28 states have call predecessors, (68), 28 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 00:13:39,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1173 transitions. [2024-11-24 00:13:39,962 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1173 transitions. Word has length 108 [2024-11-24 00:13:39,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:39,962 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1173 transitions. [2024-11-24 00:13:39,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.44) internal successors, (111), 22 states have internal predecessors, (111), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:13:39,963 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1173 transitions. [2024-11-24 00:13:39,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:13:39,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:39,965 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:39,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-24 00:13:40,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-24 00:13:40,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:13:40,366 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:40,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash 29816895, now seen corresponding path program 1 times [2024-11-24 00:13:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650901282] [2024-11-24 00:13:40,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:40,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:40,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:40,369 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:13:40,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-24 00:13:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:40,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:13:40,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:13:40,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:13:40,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:40,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650901282] [2024-11-24 00:13:40,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650901282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:13:40,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:13:40,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:13:40,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826432464] [2024-11-24 00:13:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:40,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:13:40,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:40,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:13:40,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:13:40,871 INFO L87 Difference]: Start difference. First operand 913 states and 1173 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:13:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:41,384 INFO L93 Difference]: Finished difference Result 1398 states and 1783 transitions. [2024-11-24 00:13:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:13:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-24 00:13:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:41,390 INFO L225 Difference]: With dead ends: 1398 [2024-11-24 00:13:41,390 INFO L226 Difference]: Without dead ends: 628 [2024-11-24 00:13:41,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:13:41,391 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 1 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:41,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 556 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:13:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-24 00:13:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 610. [2024-11-24 00:13:41,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 540 states have (on average 1.2592592592592593) internal successors, (680), 544 states have internal predecessors, (680), 47 states have call successors, (47), 22 states have call predecessors, (47), 22 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-24 00:13:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 774 transitions. [2024-11-24 00:13:41,542 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 774 transitions. Word has length 108 [2024-11-24 00:13:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:41,542 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 774 transitions. [2024-11-24 00:13:41,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:13:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 774 transitions. [2024-11-24 00:13:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:13:41,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:41,544 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:41,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-24 00:13:41,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:41,746 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:41,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:41,747 INFO L85 PathProgramCache]: Analyzing trace with hash -71127703, now seen corresponding path program 1 times [2024-11-24 00:13:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:41,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083494516] [2024-11-24 00:13:41,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:41,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:41,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:41,751 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:13:41,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-24 00:13:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:42,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:13:42,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:42,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:13:42,535 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 43 treesize of output 16 [2024-11-24 00:13:42,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-24 00:13:46,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:46,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-24 00:13:47,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:47,052 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 67 treesize of output 69 [2024-11-24 00:13:47,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:47,323 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 80 treesize of output 88 [2024-11-24 00:13:47,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:47,932 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 124 treesize of output 132 [2024-11-24 00:13:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-24 00:13:49,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:13:50,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:50,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083494516] [2024-11-24 00:13:50,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083494516] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:50,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:13:50,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-24 00:13:50,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913132656] [2024-11-24 00:13:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:50,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:13:50,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:50,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:13:50,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=156, Unknown=1, NotChecked=0, Total=210 [2024-11-24 00:13:50,382 INFO L87 Difference]: Start difference. First operand 610 states and 774 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:13:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:53,775 INFO L93 Difference]: Finished difference Result 1108 states and 1401 transitions. [2024-11-24 00:13:53,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:13:53,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:13:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:53,781 INFO L225 Difference]: With dead ends: 1108 [2024-11-24 00:13:53,782 INFO L226 Difference]: Without dead ends: 646 [2024-11-24 00:13:53,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=59, Invalid=180, Unknown=1, NotChecked=0, Total=240 [2024-11-24 00:13:53,784 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 48 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:53,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 355 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 00:13:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-24 00:13:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 356. [2024-11-24 00:13:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 310 states have (on average 1.232258064516129) internal successors, (382), 312 states have internal predecessors, (382), 30 states have call successors, (30), 15 states have call predecessors, (30), 15 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:13:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 442 transitions. [2024-11-24 00:13:53,905 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 442 transitions. Word has length 108 [2024-11-24 00:13:53,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:53,905 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 442 transitions. [2024-11-24 00:13:53,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:13:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 442 transitions. [2024-11-24 00:13:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:13:53,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:53,907 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:53,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:13:54,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:54,107 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:54,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:54,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2075544295, now seen corresponding path program 1 times [2024-11-24 00:13:54,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:54,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014611465] [2024-11-24 00:13:54,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:54,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:54,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:54,110 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:13:54,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-24 00:13:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:54,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:13:54,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:55,254 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 [2024-11-24 00:13:55,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:55,962 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 153 treesize of output 63 [2024-11-24 00:13:56,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:56,243 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 137 treesize of output 73 [2024-11-24 00:13:56,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:56,796 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 232 treesize of output 117 [2024-11-24 00:13:57,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:57,164 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 180 treesize of output 132 [2024-11-24 00:13:57,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:57,382 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 195 treesize of output 132 [2024-11-24 00:13:58,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:58,959 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 370 treesize of output 148 [2024-11-24 00:13:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 16 proven. 112 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-24 00:13:59,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:00,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:14:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014611465] [2024-11-24 00:14:00,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014611465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [268103851] [2024-11-24 00:14:00,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:00,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:14:00,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:14:00,030 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:14:00,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc50961b-d13c-4202-9abf-43c6efce954f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-24 00:14:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:02,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:14:02,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:03,274 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 [2024-11-24 00:14:04,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:04,795 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 127 treesize of output 63 [2024-11-24 00:14:05,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:05,542 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 120 treesize of output 63 [2024-11-24 00:14:06,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:06,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 124 [2024-11-24 00:14:07,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:07,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 69 treesize of output 75 [2024-11-24 00:14:07,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:07,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 115 treesize of output 112 [2024-11-24 00:14:12,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:12,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 227 treesize of output 95 [2024-11-24 00:14:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:14:12,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:14:35,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [268103851] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:35,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:14:35,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 14] total 30 [2024-11-24 00:14:35,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690628191] [2024-11-24 00:14:35,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:35,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:14:35,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:35,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:14:35,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=782, Unknown=4, NotChecked=0, Total=930 [2024-11-24 00:14:35,445 INFO L87 Difference]: Start difference. First operand 356 states and 442 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:14:40,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:05,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:09,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:13,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:17,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:21,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:25,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:29,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:33,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:37,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:41,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:45,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:49,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:53,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:15:57,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:01,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:05,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:09,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:13,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:17,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:19,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:23,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:27,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:31,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:35,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:39,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:43,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:47,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:51,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:56,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:00,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:04,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:08,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:12,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:16,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]