./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB --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 e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:44:13,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:44:13,840 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:44:13,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:44:13,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:44:13,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:44:13,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:44:13,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:44:13,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:44:13,883 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:44:13,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:44:13,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:44:13,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:44:13,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:44:13,884 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:44:13,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:44:13,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:44:13,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:44:13,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:44:13,885 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:44:13,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:44:13,890 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:44:13,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:44:13,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:44:13,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:44:13,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:13,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:44:13,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:13,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:44:13,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:44:13,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:44:13,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:44:13,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:44:13,892 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_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB 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 -> e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 [2024-11-28 04:44:14,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:44:14,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:44:14,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:44:14,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:44:14,273 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:44:14,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-28 04:44:18,012 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/fe98fd4c5/d26ee0ba86b34f00b8cf2cc17ca009c9/FLAG86578e423 [2024-11-28 04:44:18,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:44:18,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-28 04:44:18,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/fe98fd4c5/d26ee0ba86b34f00b8cf2cc17ca009c9/FLAG86578e423 [2024-11-28 04:44:18,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/fe98fd4c5/d26ee0ba86b34f00b8cf2cc17ca009c9 [2024-11-28 04:44:18,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:44:18,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:44:18,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:44:18,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:44:18,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:44:18,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64705a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18, skipping insertion in model container [2024-11-28 04:44:18,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:44:18,643 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_5e00227a-f77a-4615-b4bd-c039d367b95b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-28 04:44:18,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:44:18,726 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:44:18,741 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_5e00227a-f77a-4615-b4bd-c039d367b95b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-28 04:44:18,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:44:18,814 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:44:18,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18 WrapperNode [2024-11-28 04:44:18,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:44:18,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:44:18,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:44:18,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:44:18,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,904 INFO L138 Inliner]: procedures = 30, calls = 117, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 411 [2024-11-28 04:44:18,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:44:18,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:44:18,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:44:18,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:44:18,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,951 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 04:44:18,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:18,994 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:19,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:19,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:19,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:19,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:19,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:44:19,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:44:19,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:44:19,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:44:19,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (1/1) ... [2024-11-28 04:44:19,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:19,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:19,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:44:19,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:44:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:44:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-28 04:44:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 04:44:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 04:44:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:44:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 04:44:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:44:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:44:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:44:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:44:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:44:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:44:19,328 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:44:19,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:44:20,156 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-28 04:44:20,157 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:44:20,171 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:44:20,171 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:44:20,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:20 BoogieIcfgContainer [2024-11-28 04:44:20,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:44:20,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:44:20,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:44:20,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:44:20,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:44:18" (1/3) ... [2024-11-28 04:44:20,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7ea0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:20, skipping insertion in model container [2024-11-28 04:44:20,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:18" (2/3) ... [2024-11-28 04:44:20,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7ea0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:20, skipping insertion in model container [2024-11-28 04:44:20,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:20" (3/3) ... [2024-11-28 04:44:20,186 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-22.i [2024-11-28 04:44:20,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:44:20,233 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-22.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:44:20,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:44:20,323 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;@7ab31d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:44:20,323 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:44:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:44:20,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:44:20,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:20,341 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:20,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:20,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1659460873, now seen corresponding path program 1 times [2024-11-28 04:44:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:20,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618420953] [2024-11-28 04:44:20,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:20,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 04:44:20,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:20,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618420953] [2024-11-28 04:44:20,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618420953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:20,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457430305] [2024-11-28 04:44:20,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:20,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:20,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:20,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:44:20,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:44:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:21,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:44:21,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 04:44:21,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:44:21,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457430305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:21,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:44:21,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:44:21,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842686286] [2024-11-28 04:44:21,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:21,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:44:21,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:21,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:44:21,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:44:21,305 INFO L87 Difference]: Start difference. First operand has 105 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:44:21,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:21,341 INFO L93 Difference]: Finished difference Result 203 states and 311 transitions. [2024-11-28 04:44:21,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:44:21,343 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-11-28 04:44:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:21,351 INFO L225 Difference]: With dead ends: 203 [2024-11-28 04:44:21,351 INFO L226 Difference]: Without dead ends: 101 [2024-11-28 04:44:21,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:44:21,364 INFO L435 NwaCegarLoop]: 146 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, 146 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 [2024-11-28 04:44:21,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:44:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-28 04:44:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-28 04:44:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.4222222222222223) internal successors, (128), 90 states have internal predecessors, (128), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:44:21,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2024-11-28 04:44:21,427 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 90 [2024-11-28 04:44:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:21,428 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2024-11-28 04:44:21,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:44:21,429 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2024-11-28 04:44:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:44:21,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:21,433 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:21,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:44:21,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:44:21,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:21,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:21,635 INFO L85 PathProgramCache]: Analyzing trace with hash 328924025, now seen corresponding path program 1 times [2024-11-28 04:44:21,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:21,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230255432] [2024-11-28 04:44:21,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:21,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:24,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:24,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230255432] [2024-11-28 04:44:24,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230255432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:24,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:24,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:44:24,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468136452] [2024-11-28 04:44:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:24,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:44:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:24,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:44:24,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:44:24,333 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:26,300 INFO L93 Difference]: Finished difference Result 499 states and 725 transitions. [2024-11-28 04:44:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:44:26,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-28 04:44:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:26,304 INFO L225 Difference]: With dead ends: 499 [2024-11-28 04:44:26,304 INFO L226 Difference]: Without dead ends: 401 [2024-11-28 04:44:26,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:44:26,306 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 342 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:26,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 629 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:44:26,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-28 04:44:26,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 282. [2024-11-28 04:44:26,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 251 states have (on average 1.4183266932270917) internal successors, (356), 251 states have internal predecessors, (356), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:44:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 410 transitions. [2024-11-28 04:44:26,359 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 410 transitions. Word has length 90 [2024-11-28 04:44:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:26,360 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 410 transitions. [2024-11-28 04:44:26,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:26,360 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 410 transitions. [2024-11-28 04:44:26,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:44:26,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:26,367 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:26,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:44:26,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:26,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1540153901, now seen corresponding path program 1 times [2024-11-28 04:44:26,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:26,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706626807] [2024-11-28 04:44:26,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:26,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:27,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:27,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706626807] [2024-11-28 04:44:27,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706626807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:27,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:27,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:44:27,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106600919] [2024-11-28 04:44:27,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:27,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:44:27,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:27,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:44:27,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:44:27,342 INFO L87 Difference]: Start difference. First operand 282 states and 410 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:27,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:27,955 INFO L93 Difference]: Finished difference Result 969 states and 1413 transitions. [2024-11-28 04:44:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:44:27,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2024-11-28 04:44:27,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:27,960 INFO L225 Difference]: With dead ends: 969 [2024-11-28 04:44:27,961 INFO L226 Difference]: Without dead ends: 690 [2024-11-28 04:44:27,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:44:27,964 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 383 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:27,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 520 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:44:27,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-28 04:44:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 474. [2024-11-28 04:44:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 423 states have (on average 1.42080378250591) internal successors, (601), 423 states have internal predecessors, (601), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:44:28,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 691 transitions. [2024-11-28 04:44:28,114 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 691 transitions. Word has length 91 [2024-11-28 04:44:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:28,115 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 691 transitions. [2024-11-28 04:44:28,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 691 transitions. [2024-11-28 04:44:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:44:28,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:28,122 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:28,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:44:28,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:28,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash 522324476, now seen corresponding path program 1 times [2024-11-28 04:44:28,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:28,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429373434] [2024-11-28 04:44:28,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:28,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:28,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:28,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429373434] [2024-11-28 04:44:28,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429373434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:28,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:28,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:28,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640199630] [2024-11-28 04:44:28,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:28,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:28,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:28,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:28,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:28,303 INFO L87 Difference]: Start difference. First operand 474 states and 691 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:28,472 INFO L93 Difference]: Finished difference Result 732 states and 1064 transitions. [2024-11-28 04:44:28,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:28,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 92 [2024-11-28 04:44:28,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:28,476 INFO L225 Difference]: With dead ends: 732 [2024-11-28 04:44:28,476 INFO L226 Difference]: Without dead ends: 261 [2024-11-28 04:44:28,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:28,485 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:28,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:44:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-28 04:44:28,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 245. [2024-11-28 04:44:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 214 states have (on average 1.3878504672897196) internal successors, (297), 214 states have internal predecessors, (297), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:44:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 351 transitions. [2024-11-28 04:44:28,535 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 351 transitions. Word has length 92 [2024-11-28 04:44:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:28,537 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 351 transitions. [2024-11-28 04:44:28,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 351 transitions. [2024-11-28 04:44:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:44:28,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:28,541 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:28,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:44:28,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:28,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash 420939654, now seen corresponding path program 1 times [2024-11-28 04:44:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:28,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992450566] [2024-11-28 04:44:28,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:28,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:30,127 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:30,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:30,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992450566] [2024-11-28 04:44:30,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992450566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:30,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:30,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:44:30,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117862484] [2024-11-28 04:44:30,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:30,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:44:30,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:30,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:44:30,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:44:30,132 INFO L87 Difference]: Start difference. First operand 245 states and 351 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:31,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:31,823 INFO L93 Difference]: Finished difference Result 1076 states and 1546 transitions. [2024-11-28 04:44:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:44:31,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-11-28 04:44:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:31,834 INFO L225 Difference]: With dead ends: 1076 [2024-11-28 04:44:31,834 INFO L226 Difference]: Without dead ends: 884 [2024-11-28 04:44:31,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:44:31,837 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 937 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:31,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 949 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:44:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-28 04:44:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 627. [2024-11-28 04:44:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 556 states have (on average 1.3992805755395683) internal successors, (778), 556 states have internal predecessors, (778), 63 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 04:44:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 904 transitions. [2024-11-28 04:44:31,943 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 904 transitions. Word has length 95 [2024-11-28 04:44:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:31,944 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 904 transitions. [2024-11-28 04:44:31,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 904 transitions. [2024-11-28 04:44:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:44:31,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:31,949 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:31,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:44:31,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:31,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:31,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1007745668, now seen corresponding path program 1 times [2024-11-28 04:44:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824191565] [2024-11-28 04:44:31,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:31,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:44:33,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:33,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824191565] [2024-11-28 04:44:33,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824191565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:33,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049063925] [2024-11-28 04:44:33,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:33,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:33,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:33,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:44:33,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:44:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:33,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:44:33,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:34,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 54 [2024-11-28 04:44:34,444 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 104 treesize of output 86 [2024-11-28 04:44:34,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-28 04:44:34,783 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 23 treesize of output 24 [2024-11-28 04:44:34,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:44:34,912 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 [2024-11-28 04:44:34,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:44:34,941 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 [2024-11-28 04:44:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:44:35,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049063925] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:44:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 20 [2024-11-28 04:44:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109746928] [2024-11-28 04:44:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:35,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:44:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:35,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:44:35,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:44:35,850 INFO L87 Difference]: Start difference. First operand 627 states and 904 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:36,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:36,597 INFO L93 Difference]: Finished difference Result 1203 states and 1739 transitions. [2024-11-28 04:44:36,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:44:36,598 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-11-28 04:44:36,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:36,603 INFO L225 Difference]: With dead ends: 1203 [2024-11-28 04:44:36,603 INFO L226 Difference]: Without dead ends: 730 [2024-11-28 04:44:36,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:44:36,606 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 120 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:36,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 637 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:44:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-28 04:44:36,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 724. [2024-11-28 04:44:36,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 643 states have (on average 1.3996889580093312) internal successors, (900), 643 states have internal predecessors, (900), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:44:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1044 transitions. [2024-11-28 04:44:36,679 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1044 transitions. Word has length 95 [2024-11-28 04:44:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:36,680 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1044 transitions. [2024-11-28 04:44:36,681 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1044 transitions. [2024-11-28 04:44:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:44:36,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:36,683 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:36,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:44:36,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:36,887 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:36,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash -86241146, now seen corresponding path program 1 times [2024-11-28 04:44:36,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:36,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906810153] [2024-11-28 04:44:36,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:36,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:38,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:38,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906810153] [2024-11-28 04:44:38,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906810153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:38,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:38,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:44:38,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19099031] [2024-11-28 04:44:38,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:38,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:44:38,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:38,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:44:38,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:44:38,216 INFO L87 Difference]: Start difference. First operand 724 states and 1044 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:39,217 INFO L93 Difference]: Finished difference Result 1363 states and 1958 transitions. [2024-11-28 04:44:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:44:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2024-11-28 04:44:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:39,222 INFO L225 Difference]: With dead ends: 1363 [2024-11-28 04:44:39,223 INFO L226 Difference]: Without dead ends: 688 [2024-11-28 04:44:39,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:44:39,225 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 491 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:39,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 603 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:44:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-28 04:44:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 525. [2024-11-28 04:44:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 464 states have (on average 1.3922413793103448) internal successors, (646), 464 states have internal predecessors, (646), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:44:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 754 transitions. [2024-11-28 04:44:39,281 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 754 transitions. Word has length 96 [2024-11-28 04:44:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:39,282 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 754 transitions. [2024-11-28 04:44:39,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 754 transitions. [2024-11-28 04:44:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:44:39,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:39,284 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:39,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:44:39,284 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:39,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:39,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1520928257, now seen corresponding path program 1 times [2024-11-28 04:44:39,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:39,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173576928] [2024-11-28 04:44:39,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:39,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:41,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:41,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173576928] [2024-11-28 04:44:41,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173576928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:41,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:41,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:44:41,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725919619] [2024-11-28 04:44:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:41,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:44:41,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:41,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:44:41,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:44:41,378 INFO L87 Difference]: Start difference. First operand 525 states and 754 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:42,351 INFO L93 Difference]: Finished difference Result 1068 states and 1529 transitions. [2024-11-28 04:44:42,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:44:42,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-28 04:44:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:42,361 INFO L225 Difference]: With dead ends: 1068 [2024-11-28 04:44:42,361 INFO L226 Difference]: Without dead ends: 687 [2024-11-28 04:44:42,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:44:42,367 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 268 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:42,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 829 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:44:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-28 04:44:42,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 552. [2024-11-28 04:44:42,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 491 states have (on average 1.3890020366598779) internal successors, (682), 491 states have internal predecessors, (682), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:44:42,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 790 transitions. [2024-11-28 04:44:42,431 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 790 transitions. Word has length 97 [2024-11-28 04:44:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:42,431 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 790 transitions. [2024-11-28 04:44:42,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 790 transitions. [2024-11-28 04:44:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:44:42,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:42,434 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:44:42,434 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:42,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:42,436 INFO L85 PathProgramCache]: Analyzing trace with hash -628268982, now seen corresponding path program 1 times [2024-11-28 04:44:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:42,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383862834] [2024-11-28 04:44:42,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:42,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:43,991 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:43,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:43,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383862834] [2024-11-28 04:44:43,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383862834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:43,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:43,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:44:43,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937390185] [2024-11-28 04:44:43,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:43,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:44:43,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:43,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:44:43,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:44:43,994 INFO L87 Difference]: Start difference. First operand 552 states and 790 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:45,079 INFO L93 Difference]: Finished difference Result 1072 states and 1531 transitions. [2024-11-28 04:44:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:44:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-28 04:44:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:45,084 INFO L225 Difference]: With dead ends: 1072 [2024-11-28 04:44:45,084 INFO L226 Difference]: Without dead ends: 683 [2024-11-28 04:44:45,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:44:45,087 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 411 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:45,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 833 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:44:45,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-28 04:44:45,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 544. [2024-11-28 04:44:45,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 483 states have (on average 1.3830227743271222) internal successors, (668), 483 states have internal predecessors, (668), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:44:45,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 776 transitions. [2024-11-28 04:44:45,141 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 776 transitions. Word has length 97 [2024-11-28 04:44:45,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:45,142 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 776 transitions. [2024-11-28 04:44:45,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 776 transitions. [2024-11-28 04:44:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:44:45,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:45,144 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:45,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:44:45,145 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:45,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:45,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1378931136, now seen corresponding path program 1 times [2024-11-28 04:44:45,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:45,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932197597] [2024-11-28 04:44:45,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:45,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:45,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:45,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932197597] [2024-11-28 04:44:45,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932197597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:45,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:45,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:44:45,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007767953] [2024-11-28 04:44:45,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:45,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:44:45,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:45,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:44:45,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:44:45,836 INFO L87 Difference]: Start difference. First operand 544 states and 776 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:46,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:46,917 INFO L93 Difference]: Finished difference Result 1398 states and 1993 transitions. [2024-11-28 04:44:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:44:46,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-28 04:44:46,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:46,923 INFO L225 Difference]: With dead ends: 1398 [2024-11-28 04:44:46,924 INFO L226 Difference]: Without dead ends: 903 [2024-11-28 04:44:46,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:44:46,926 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 234 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:46,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 541 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:44:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-28 04:44:46,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 556. [2024-11-28 04:44:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 495 states have (on average 1.3797979797979798) internal successors, (683), 495 states have internal predecessors, (683), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:44:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 791 transitions. [2024-11-28 04:44:46,991 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 791 transitions. Word has length 97 [2024-11-28 04:44:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:46,992 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 791 transitions. [2024-11-28 04:44:46,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 791 transitions. [2024-11-28 04:44:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:44:46,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:46,995 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:46,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:44:46,996 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:46,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1316891522, now seen corresponding path program 1 times [2024-11-28 04:44:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417919789] [2024-11-28 04:44:46,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:48,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:48,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417919789] [2024-11-28 04:44:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417919789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:48,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:48,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:44:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143289361] [2024-11-28 04:44:48,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:48,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:44:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:48,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:44:48,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:44:48,021 INFO L87 Difference]: Start difference. First operand 556 states and 791 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:44:48,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:48,498 INFO L93 Difference]: Finished difference Result 938 states and 1339 transitions. [2024-11-28 04:44:48,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:44:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2024-11-28 04:44:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:48,503 INFO L225 Difference]: With dead ends: 938 [2024-11-28 04:44:48,504 INFO L226 Difference]: Without dead ends: 744 [2024-11-28 04:44:48,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:44:48,506 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:48,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 441 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:44:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-28 04:44:48,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 560. [2024-11-28 04:44:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 499 states have (on average 1.374749498997996) internal successors, (686), 499 states have internal predecessors, (686), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:44:48,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 794 transitions. [2024-11-28 04:44:48,561 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 794 transitions. Word has length 97 [2024-11-28 04:44:48,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:48,562 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 794 transitions. [2024-11-28 04:44:48,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:44:48,562 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 794 transitions. [2024-11-28 04:44:48,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:44:48,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:48,564 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:48,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:44:48,564 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:48,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash -511230790, now seen corresponding path program 1 times [2024-11-28 04:44:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:48,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119291777] [2024-11-28 04:44:48,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:49,555 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:49,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:49,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119291777] [2024-11-28 04:44:49,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119291777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:49,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:49,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:44:49,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715804649] [2024-11-28 04:44:49,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:49,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:44:49,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:49,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:44:49,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:44:49,559 INFO L87 Difference]: Start difference. First operand 560 states and 794 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:51,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:51,082 INFO L93 Difference]: Finished difference Result 1216 states and 1722 transitions. [2024-11-28 04:44:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:44:51,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-28 04:44:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:51,090 INFO L225 Difference]: With dead ends: 1216 [2024-11-28 04:44:51,090 INFO L226 Difference]: Without dead ends: 715 [2024-11-28 04:44:51,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:44:51,092 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 286 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:51,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 550 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:44:51,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-28 04:44:51,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 560. [2024-11-28 04:44:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 499 states have (on average 1.374749498997996) internal successors, (686), 499 states have internal predecessors, (686), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:44:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 794 transitions. [2024-11-28 04:44:51,152 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 794 transitions. Word has length 97 [2024-11-28 04:44:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:51,152 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 794 transitions. [2024-11-28 04:44:51,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 794 transitions. [2024-11-28 04:44:51,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:44:51,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:51,155 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:51,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:44:51,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:51,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash -72641074, now seen corresponding path program 1 times [2024-11-28 04:44:51,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:51,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224951016] [2024-11-28 04:44:51,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:44:51,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224951016] [2024-11-28 04:44:51,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224951016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:51,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:51,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:51,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590920823] [2024-11-28 04:44:51,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:51,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:44:51,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:51,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:44:51,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:51,460 INFO L87 Difference]: Start difference. First operand 560 states and 794 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:51,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:51,500 INFO L93 Difference]: Finished difference Result 776 states and 1098 transitions. [2024-11-28 04:44:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:51,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 98 [2024-11-28 04:44:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:51,504 INFO L225 Difference]: With dead ends: 776 [2024-11-28 04:44:51,504 INFO L226 Difference]: Without dead ends: 272 [2024-11-28 04:44:51,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:44:51,509 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:51,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:44:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-28 04:44:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262. [2024-11-28 04:44:51,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 231 states have internal predecessors, (309), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:44:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 363 transitions. [2024-11-28 04:44:51,540 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 363 transitions. Word has length 98 [2024-11-28 04:44:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:51,540 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 363 transitions. [2024-11-28 04:44:51,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:51,541 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 363 transitions. [2024-11-28 04:44:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:44:51,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:51,542 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:51,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:44:51,543 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:51,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:51,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1291021946, now seen corresponding path program 1 times [2024-11-28 04:44:51,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:51,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813444173] [2024-11-28 04:44:51,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:51,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:44:52,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813444173] [2024-11-28 04:44:52,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813444173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856490164] [2024-11-28 04:44:52,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:52,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:52,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:52,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:44:52,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:44:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:53,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:44:53,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:53,164 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 24 treesize of output 9 [2024-11-28 04:44:53,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:44:53,551 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 26 [2024-11-28 04:44:53,605 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 [2024-11-28 04:44:53,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-28 04:44:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 04:44:53,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:54,998 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 57 treesize of output 39 [2024-11-28 04:44:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:44:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856490164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:44:55,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:44:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 22 [2024-11-28 04:44:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736446996] [2024-11-28 04:44:55,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:44:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:44:55,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:55,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:44:55,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:44:55,542 INFO L87 Difference]: Start difference. First operand 262 states and 363 transitions. Second operand has 22 states, 20 states have (on average 5.5) internal successors, (110), 22 states have internal predecessors, (110), 6 states have call successors, (27), 3 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 04:44:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:58,539 INFO L93 Difference]: Finished difference Result 647 states and 895 transitions. [2024-11-28 04:44:58,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:44:58,540 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.5) internal successors, (110), 22 states have internal predecessors, (110), 6 states have call successors, (27), 3 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 6 states have call successors, (27) Word has length 99 [2024-11-28 04:44:58,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:58,543 INFO L225 Difference]: With dead ends: 647 [2024-11-28 04:44:58,543 INFO L226 Difference]: Without dead ends: 448 [2024-11-28 04:44:58,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:44:58,545 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 405 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:58,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 822 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:44:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-28 04:44:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 272. [2024-11-28 04:44:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 240 states have (on average 1.3291666666666666) internal successors, (319), 240 states have internal predecessors, (319), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:44:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 373 transitions. [2024-11-28 04:44:58,586 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 373 transitions. Word has length 99 [2024-11-28 04:44:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:58,587 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 373 transitions. [2024-11-28 04:44:58,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.5) internal successors, (110), 22 states have internal predecessors, (110), 6 states have call successors, (27), 3 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 04:44:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 373 transitions. [2024-11-28 04:44:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 04:44:58,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:58,590 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:58,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:44:58,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:44:58,791 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:58,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:58,792 INFO L85 PathProgramCache]: Analyzing trace with hash -173005409, now seen corresponding path program 1 times [2024-11-28 04:44:58,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:58,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853364695] [2024-11-28 04:44:58,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:58,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:44:58,910 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:44:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:44:59,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:44:59,087 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:44:59,089 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:44:59,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:44:59,095 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:59,194 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:44:59,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:44:59 BoogieIcfgContainer [2024-11-28 04:44:59,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:44:59,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:44:59,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:44:59,201 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:44:59,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:20" (3/4) ... [2024-11-28 04:44:59,205 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:44:59,207 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:44:59,208 INFO L158 Benchmark]: Toolchain (without parser) took 40809.98ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 92.2MB in the beginning and 228.9MB in the end (delta: -136.7MB). Peak memory consumption was 190.6MB. Max. memory is 16.1GB. [2024-11-28 04:44:59,208 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:44:59,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.37ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 76.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:44:59,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.96ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 73.4MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:44:59,209 INFO L158 Benchmark]: Boogie Preprocessor took 130.01ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:44:59,210 INFO L158 Benchmark]: RCFGBuilder took 1136.47ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 39.8MB in the end (delta: 30.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:44:59,210 INFO L158 Benchmark]: TraceAbstraction took 39025.29ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 39.4MB in the beginning and 229.0MB in the end (delta: -189.6MB). Peak memory consumption was 140.3MB. Max. memory is 16.1GB. [2024-11-28 04:44:59,211 INFO L158 Benchmark]: Witness Printer took 5.64ms. Allocated memory is still 444.6MB. Free memory was 229.0MB in the beginning and 228.9MB in the end (delta: 58.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:44:59,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.37ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 76.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.96ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 73.4MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 130.01ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1136.47ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 39.8MB in the end (delta: 30.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 39025.29ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 39.4MB in the beginning and 229.0MB in the end (delta: -189.6MB). Peak memory consumption was 140.3MB. Max. memory is 16.1GB. * Witness Printer took 5.64ms. Allocated memory is still 444.6MB. Free memory was 229.0MB in the beginning and 228.9MB in the end (delta: 58.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 92, overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 102, overapproximation of someBinaryFLOATComparisonOperation at line 92, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 77. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { -5, 0, 256, 44772, 5.9, 7.6, 64.2, 128.75, 8, 3135928546 }; [L47] signed short int last_1_WrapperStruct00_var_1_1 = -5; [L48] unsigned long int last_1_WrapperStruct00_var_1_11 = 8; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L106] isInitial = 1 [L107] FCALL initially() [L109] CALL updateLastVariables() [L98] EXPR WrapperStruct00.var_1_1 [L98] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L99] EXPR WrapperStruct00.var_1_11 [L99] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L109] RET updateLastVariables() [L110] CALL updateVariables() [L81] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L82] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L82] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L82] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L83] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L84] WrapperStruct00.var_1_6 = __VERIFIER_nondet_ushort() [L85] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L86] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L87] WrapperStruct00.var_1_8 = __VERIFIER_nondet_float() [L88] EXPR WrapperStruct00.var_1_8 [L88] EXPR WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F [L88] EXPR WrapperStruct00.var_1_8 [L88] EXPR WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L88] EXPR (WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 1152921.504606845700e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L88] CALL assume_abort_if_not((WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 1152921.504606845700e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L88] RET assume_abort_if_not((WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 1152921.504606845700e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L89] WrapperStruct00.var_1_9 = __VERIFIER_nondet_float() [L90] EXPR WrapperStruct00.var_1_9 [L90] EXPR WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L90] EXPR WrapperStruct00.var_1_9 [L90] EXPR WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L90] EXPR (WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L90] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L90] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L91] WrapperStruct00.var_1_10 = __VERIFIER_nondet_float() [L92] EXPR WrapperStruct00.var_1_10 [L92] EXPR WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L92] EXPR WrapperStruct00.var_1_10 [L92] 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_11=8, last_1_WrapperStruct00_var_1_1=-5] [L92] 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_11=8, last_1_WrapperStruct00_var_1_1=-5] [L92] 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_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L92] 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_11=8, last_1_WrapperStruct00_var_1_1=-5] [L93] WrapperStruct00.var_1_12 = __VERIFIER_nondet_ulong() [L94] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L95] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L110] RET updateVariables() [L111] CALL step() [L52] signed long int stepLocal_0 = last_1_WrapperStruct00_var_1_1; [L53] WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L53] COND TRUE WrapperStruct00.var_1_4 [L54] WrapperStruct00.var_1_5 = last_1_WrapperStruct00_var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L60] EXPR WrapperStruct00.var_1_5 [L60] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L60] COND TRUE WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5 [L61] EXPR WrapperStruct00.var_1_5 [L61] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_5 + -16) [L67] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L67] EXPR WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L67] COND TRUE last_1_WrapperStruct00_var_1_11 >= (WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11) [L68] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)) [L68] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] WrapperStruct00.var_1_11 = ((((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)))) [L76] EXPR WrapperStruct00.var_1_1 [L76] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L76] COND TRUE WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5 [L77] EXPR WrapperStruct00.var_1_8 [L77] EXPR WrapperStruct00.var_1_9 [L77] EXPR WrapperStruct00.var_1_10 [L77] WrapperStruct00.var_1_7 = (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) [L111] RET step() [L112] CALL, EXPR property() [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1) [L102] EXPR WrapperStruct00.var_1_1 [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR (WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR ((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1)) [L102] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1) [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR ((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1) [L102] EXPR WrapperStruct00.var_1_1 [L102] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1 [L102] EXPR WrapperStruct00.var_1_7 [L102] EXPR WrapperStruct00.var_1_8 [L102] EXPR WrapperStruct00.var_1_9 [L102] EXPR WrapperStruct00.var_1_10 [L102] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR ((((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1)) && ((last_1_WrapperStruct00_var_1_11 >= (WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11)) ? (WrapperStruct00.var_1_11 == ((unsigned long int) ((((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)))))) : ((5.7 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)) : (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102-L103] return ((((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1)) && ((last_1_WrapperStruct00_var_1_11 >= (WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11)) ? (WrapperStruct00.var_1_11 == ((unsigned long int) ((((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)))))) : ((5.7 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)) : (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)))) ; [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.8s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4030 SdHoareTripleChecker+Valid, 11.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4029 mSDsluCounter, 8025 SdHoareTripleChecker+Invalid, 10.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5954 mSDsCounter, 571 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6287 IncrementalHoareTripleChecker+Invalid, 6858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 571 mSolverCounterUnsat, 2071 mSDtfsCounter, 6287 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 660 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=724occurred in iteration=6, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 1923 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 1716 NumberOfCodeBlocks, 1716 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1790 ConstructedInterpolants, 0 QuantifiedInterpolants, 8790 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1103 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 2684/2736 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 [2024-11-28 04:44:59,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB --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 e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:45:02,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:45:02,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:45:02,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:45:02,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:45:02,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:45:02,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:45:02,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:45:02,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:45:02,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:45:02,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:45:02,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:45:02,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:45:02,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:45:02,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:45:02,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:45:02,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:45:02,775 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:45:02,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:02,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:02,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:02,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:02,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:45:02,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:02,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:02,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:02,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:02,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:45:02,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:45:02,778 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:45:02,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:45:02,778 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:45:02,779 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:45:02,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:45:02,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:45:02,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:45:02,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:45:02,780 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_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB 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 -> e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 [2024-11-28 04:45:03,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:45:03,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:45:03,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:45:03,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:45:03,174 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:45:03,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-28 04:45:06,991 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/5ef621b43/d578a24c1b364aa7b980d792d2725ea3/FLAG2ccd1cf6f [2024-11-28 04:45:07,349 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:45:07,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-28 04:45:07,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/5ef621b43/d578a24c1b364aa7b980d792d2725ea3/FLAG2ccd1cf6f [2024-11-28 04:45:07,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/data/5ef621b43/d578a24c1b364aa7b980d792d2725ea3 [2024-11-28 04:45:07,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:45:07,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:45:07,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:07,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:45:07,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:45:07,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:07" (1/1) ... [2024-11-28 04:45:07,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0a0051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:07, skipping insertion in model container [2024-11-28 04:45:07,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:07" (1/1) ... [2024-11-28 04:45:07,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:45:07,857 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_5e00227a-f77a-4615-b4bd-c039d367b95b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-28 04:45:07,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:07,961 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:45:07,976 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_5e00227a-f77a-4615-b4bd-c039d367b95b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-28 04:45:08,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:08,066 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:45:08,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08 WrapperNode [2024-11-28 04:45:08,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:08,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:08,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:45:08,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:45:08,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,183 INFO L138 Inliner]: procedures = 37, calls = 117, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2024-11-28 04:45:08,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:08,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:45:08,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:45:08,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:45:08,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,262 INFO L175 MemorySlicer]: Split 97 memory accesses to 2 slices as follows [2, 95]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 25 writes are split as follows [0, 25]. [2024-11-28 04:45:08,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,307 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:45:08,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:45:08,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:45:08,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:45:08,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (1/1) ... [2024-11-28 04:45:08,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:08,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:08,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:45:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:45:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:45:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:45:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:45:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-28 04:45:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-28 04:45:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-28 04:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-28 04:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 04:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 04:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-28 04:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-28 04:45:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-28 04:45:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-28 04:45:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:45:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:45:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-28 04:45:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-28 04:45:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:45:08,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:45:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 04:45:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 04:45:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-28 04:45:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-28 04:45:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:45:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:45:08,628 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:45:08,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:45:12,414 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-28 04:45:12,414 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:45:12,429 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:45:12,429 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:45:12,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12 BoogieIcfgContainer [2024-11-28 04:45:12,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:45:12,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:45:12,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:45:12,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:45:12,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:45:07" (1/3) ... [2024-11-28 04:45:12,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698592b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:12, skipping insertion in model container [2024-11-28 04:45:12,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:08" (2/3) ... [2024-11-28 04:45:12,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698592b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:12, skipping insertion in model container [2024-11-28 04:45:12,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12" (3/3) ... [2024-11-28 04:45:12,467 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-22.i [2024-11-28 04:45:12,482 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:45:12,483 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-22.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:45:12,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:45:12,562 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;@76050bc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:45:12,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:45:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 88 states have internal predecessors, (126), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:45:12,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:45:12,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:12,580 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:12,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:12,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:12,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1037497833, now seen corresponding path program 1 times [2024-11-28 04:45:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:12,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973675562] [2024-11-28 04:45:12,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:12,605 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 [2024-11-28 04:45:12,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:12,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:12,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:13,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:45:13,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:45:13,263 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:13,265 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:13,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973675562] [2024-11-28 04:45:13,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973675562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:13,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:13,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:13,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722331134] [2024-11-28 04:45:13,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:13,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:45:13,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:13,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:45:13,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:45:13,315 INFO L87 Difference]: Start difference. First operand has 99 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 88 states have internal predecessors, (126), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:45:13,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:13,367 INFO L93 Difference]: Finished difference Result 188 states and 286 transitions. [2024-11-28 04:45:13,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:45:13,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2024-11-28 04:45:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:13,381 INFO L225 Difference]: With dead ends: 188 [2024-11-28 04:45:13,381 INFO L226 Difference]: Without dead ends: 92 [2024-11-28 04:45:13,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:45:13,393 INFO L435 NwaCegarLoop]: 129 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, 129 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 [2024-11-28 04:45:13,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-28 04:45:13,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-28 04:45:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 81 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:45:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-11-28 04:45:13,465 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 89 [2024-11-28 04:45:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:13,465 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-11-28 04:45:13,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:45:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-11-28 04:45:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:45:13,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:13,471 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:13,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:13,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:13,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:13,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash -8583379, now seen corresponding path program 1 times [2024-11-28 04:45:13,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:13,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328769366] [2024-11-28 04:45:13,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:13,674 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 [2024-11-28 04:45:13,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:13,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:13,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:14,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:45:14,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 04:45:14,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:14,311 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:14,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328769366] [2024-11-28 04:45:14,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328769366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:14,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:45:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684432100] [2024-11-28 04:45:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:14,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:14,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:14,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:14,316 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:45:14,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:14,425 INFO L93 Difference]: Finished difference Result 183 states and 258 transitions. [2024-11-28 04:45:14,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:45:14,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2024-11-28 04:45:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:14,430 INFO L225 Difference]: With dead ends: 183 [2024-11-28 04:45:14,431 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 04:45:14,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:14,433 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 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 [2024-11-28 04:45:14,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 04:45:14,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-28 04:45:14,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:45:14,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2024-11-28 04:45:14,477 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 92 [2024-11-28 04:45:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:14,479 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2024-11-28 04:45:14,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:45:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2024-11-28 04:45:14,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:45:14,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:14,485 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 04:45:14,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:14,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:14,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash -902069717, now seen corresponding path program 1 times [2024-11-28 04:45:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:14,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196830348] [2024-11-28 04:45:14,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:14,688 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 [2024-11-28 04:45:14,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:14,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:14,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:15,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:45:15,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:15,440 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 59 treesize of output 58 [2024-11-28 04:45:15,632 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 91 treesize of output 79 [2024-11-28 04:45:16,063 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 16 treesize of output 12 [2024-11-28 04:45:16,143 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 [2024-11-28 04:45:16,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:16,341 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 35 [2024-11-28 04:45:16,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:16,398 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 35 [2024-11-28 04:45:16,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:16,480 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 81 treesize of output 51 [2024-11-28 04:45:16,591 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:16,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:16,591 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:16,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196830348] [2024-11-28 04:45:16,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196830348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:16,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:16,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:45:16,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649001012] [2024-11-28 04:45:16,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:16,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:45:16,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:16,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:45:16,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:16,599 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:19,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:45:27,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:45:28,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:28,795 INFO L93 Difference]: Finished difference Result 552 states and 771 transitions. [2024-11-28 04:45:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:45:28,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 92 [2024-11-28 04:45:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:28,802 INFO L225 Difference]: With dead ends: 552 [2024-11-28 04:45:28,802 INFO L226 Difference]: Without dead ends: 461 [2024-11-28 04:45:28,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:45:28,804 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 552 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:28,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1000 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-28 04:45:28,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-28 04:45:28,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 313. [2024-11-28 04:45:28,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 272 states have (on average 1.3602941176470589) internal successors, (370), 272 states have internal predecessors, (370), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:45:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 442 transitions. [2024-11-28 04:45:28,869 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 442 transitions. Word has length 92 [2024-11-28 04:45:28,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:28,870 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 442 transitions. [2024-11-28 04:45:28,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:28,870 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 442 transitions. [2024-11-28 04:45:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:45:28,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:28,873 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:28,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 04:45:29,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:29,074 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:29,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 278484247, now seen corresponding path program 1 times [2024-11-28 04:45:29,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:29,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077166172] [2024-11-28 04:45:29,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:29,076 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 [2024-11-28 04:45:29,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:29,081 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:29,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:29,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:45:29,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:29,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 04:45:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:29,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:29,765 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:29,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077166172] [2024-11-28 04:45:29,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077166172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:29,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:29,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:29,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654743870] [2024-11-28 04:45:29,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:29,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:29,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:29,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:29,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:29,768 INFO L87 Difference]: Start difference. First operand 313 states and 442 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:29,826 INFO L93 Difference]: Finished difference Result 493 states and 695 transitions. [2024-11-28 04:45:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:29,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 93 [2024-11-28 04:45:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:29,830 INFO L225 Difference]: With dead ends: 493 [2024-11-28 04:45:29,830 INFO L226 Difference]: Without dead ends: 226 [2024-11-28 04:45:29,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:29,833 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:29,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:29,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-28 04:45:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2024-11-28 04:45:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 193 states have (on average 1.3367875647668395) internal successors, (258), 193 states have internal predecessors, (258), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:45:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 312 transitions. [2024-11-28 04:45:29,861 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 312 transitions. Word has length 93 [2024-11-28 04:45:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:29,862 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 312 transitions. [2024-11-28 04:45:29,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 312 transitions. [2024-11-28 04:45:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:45:29,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:29,864 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:29,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:30,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:30,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:30,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1801465933, now seen corresponding path program 1 times [2024-11-28 04:45:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173325871] [2024-11-28 04:45:30,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:30,071 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 [2024-11-28 04:45:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:30,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:30,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:30,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:45:30,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:30,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:30,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:30,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173325871] [2024-11-28 04:45:30,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173325871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:30,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:30,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:30,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369469190] [2024-11-28 04:45:30,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:30,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:30,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:30,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:30,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:30,634 INFO L87 Difference]: Start difference. First operand 224 states and 312 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:31,048 INFO L93 Difference]: Finished difference Result 415 states and 577 transitions. [2024-11-28 04:45:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:31,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 93 [2024-11-28 04:45:31,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:31,054 INFO L225 Difference]: With dead ends: 415 [2024-11-28 04:45:31,056 INFO L226 Difference]: Without dead ends: 237 [2024-11-28 04:45:31,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:31,058 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 17 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:31,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 239 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:45:31,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-28 04:45:31,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 152. [2024-11-28 04:45:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 131 states have (on average 1.3206106870229009) internal successors, (173), 131 states have internal predecessors, (173), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:45:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 209 transitions. [2024-11-28 04:45:31,094 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 209 transitions. Word has length 93 [2024-11-28 04:45:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:31,094 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 209 transitions. [2024-11-28 04:45:31,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 209 transitions. [2024-11-28 04:45:31,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:45:31,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:31,096 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:31,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:31,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:31,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:31,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash -498818970, now seen corresponding path program 1 times [2024-11-28 04:45:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:31,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685480181] [2024-11-28 04:45:31,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:31,303 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 [2024-11-28 04:45:31,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:31,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:31,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:31,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:45:31,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:31,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 58 [2024-11-28 04:45:32,156 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 91 treesize of output 79 [2024-11-28 04:45:32,525 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 [2024-11-28 04:45:32,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-28 04:45:32,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:45:32,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:45:32,842 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 51 treesize of output 33 [2024-11-28 04:45:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:33,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:33,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685480181] [2024-11-28 04:45:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685480181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:33,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:33,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:45:33,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188608051] [2024-11-28 04:45:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:33,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:45:33,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:33,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:45:33,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:33,017 INFO L87 Difference]: Start difference. First operand 152 states and 209 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:36,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:45:38,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:45:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:39,280 INFO L93 Difference]: Finished difference Result 324 states and 442 transitions. [2024-11-28 04:45:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 94 [2024-11-28 04:45:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:39,283 INFO L225 Difference]: With dead ends: 324 [2024-11-28 04:45:39,283 INFO L226 Difference]: Without dead ends: 234 [2024-11-28 04:45:39,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:45:39,285 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 177 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:39,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 580 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-28 04:45:39,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-28 04:45:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 160. [2024-11-28 04:45:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 139 states have (on average 1.3237410071942446) internal successors, (184), 139 states have internal predecessors, (184), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:45:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 220 transitions. [2024-11-28 04:45:39,302 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 220 transitions. Word has length 94 [2024-11-28 04:45:39,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:39,302 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 220 transitions. [2024-11-28 04:45:39,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 220 transitions. [2024-11-28 04:45:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:45:39,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:39,305 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:39,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:39,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:39,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:39,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash 393840305, now seen corresponding path program 1 times [2024-11-28 04:45:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:39,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420958404] [2024-11-28 04:45:39,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:39,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:39,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:39,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:39,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:40,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:45:40,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:40,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 04:45:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:45:40,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:40,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:40,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420958404] [2024-11-28 04:45:40,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420958404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:40,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:40,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:40,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119158691] [2024-11-28 04:45:40,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:40,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:40,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:40,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:40,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:40,056 INFO L87 Difference]: Start difference. First operand 160 states and 220 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:40,092 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2024-11-28 04:45:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:40,093 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 94 [2024-11-28 04:45:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:40,095 INFO L225 Difference]: With dead ends: 252 [2024-11-28 04:45:40,095 INFO L226 Difference]: Without dead ends: 154 [2024-11-28 04:45:40,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:40,096 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:40,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-28 04:45:40,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-28 04:45:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 133 states have (on average 1.300751879699248) internal successors, (173), 133 states have internal predecessors, (173), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:45:40,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 209 transitions. [2024-11-28 04:45:40,118 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 209 transitions. Word has length 94 [2024-11-28 04:45:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:40,119 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 209 transitions. [2024-11-28 04:45:40,119 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:45:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 209 transitions. [2024-11-28 04:45:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:45:40,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:40,122 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:40,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-28 04:45:40,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:45:40,323 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:40,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:40,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1228323282, now seen corresponding path program 1 times [2024-11-28 04:45:40,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:40,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341565221] [2024-11-28 04:45:40,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:40,324 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 [2024-11-28 04:45:40,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:40,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:45:40,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:45:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:40,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:45:40,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:40,933 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 24 treesize of output 9 [2024-11-28 04:45:40,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:45:41,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:45:41,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:45:41,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:45:41,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:45:41,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:45:42,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:45:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 60 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 04:45:42,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:42,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-28 04:45:42,852 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:42,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341565221] [2024-11-28 04:45:42,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341565221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:42,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723518257] [2024-11-28 04:45:42,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:42,853 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:45:42,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:45:42,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:45:42,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-28 04:45:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:44,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:45:44,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:44,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2024-11-28 04:45:44,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:44,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 04:45:44,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 04:45:45,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-28 04:45:45,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-28 04:45:46,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-28 04:45:46,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-28 04:45:46,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-28 04:45:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 62 proven. 18 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:45:46,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:47,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [723518257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:47,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:45:47,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-28 04:45:47,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183203733] [2024-11-28 04:45:47,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:47,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:45:47,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:47,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:45:47,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:45:47,227 INFO L87 Difference]: Start difference. First operand 154 states and 209 transitions. Second operand has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:45:54,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:45:58,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:46:00,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:46:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:00,232 INFO L93 Difference]: Finished difference Result 298 states and 397 transitions. [2024-11-28 04:46:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:46:00,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 95 [2024-11-28 04:46:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:00,235 INFO L225 Difference]: With dead ends: 298 [2024-11-28 04:46:00,235 INFO L226 Difference]: Without dead ends: 210 [2024-11-28 04:46:00,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 324 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:46:00,237 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 163 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:00,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 599 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-28 04:46:00,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-28 04:46:00,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 164. [2024-11-28 04:46:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.2836879432624113) internal successors, (181), 141 states have internal predecessors, (181), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:46:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 217 transitions. [2024-11-28 04:46:00,266 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 217 transitions. Word has length 95 [2024-11-28 04:46:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:00,266 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 217 transitions. [2024-11-28 04:46:00,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:46:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 217 transitions. [2024-11-28 04:46:00,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:46:00,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:00,269 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:00,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-28 04:46:00,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-28 04:46:00,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:46:00,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:00,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1362336788, now seen corresponding path program 1 times [2024-11-28 04:46:00,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:00,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744252370] [2024-11-28 04:46:00,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:00,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:46:00,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:46:00,674 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:46:00,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:46:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:01,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:46:01,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:01,380 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 [2024-11-28 04:46:01,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2024-11-28 04:46:01,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:01,459 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 39 treesize of output 26 [2024-11-28 04:46:01,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:01,483 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 39 treesize of output 26 [2024-11-28 04:46:01,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:01,507 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 72 treesize of output 42 [2024-11-28 04:46:01,543 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:46:01,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:01,544 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:01,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744252370] [2024-11-28 04:46:01,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744252370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:01,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:01,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:01,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391176567] [2024-11-28 04:46:01,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:01,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:01,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:01,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:01,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:01,546 INFO L87 Difference]: Start difference. First operand 164 states and 217 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:46:04,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:46:04,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:04,997 INFO L93 Difference]: Finished difference Result 253 states and 338 transitions. [2024-11-28 04:46:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:04,998 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-11-28 04:46:04,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:05,000 INFO L225 Difference]: With dead ends: 253 [2024-11-28 04:46:05,000 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 04:46:05,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:46:05,001 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 98 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:05,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 430 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:46:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 04:46:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 164. [2024-11-28 04:46:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.2765957446808511) internal successors, (180), 141 states have internal predecessors, (180), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:46:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 216 transitions. [2024-11-28 04:46:05,030 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 216 transitions. Word has length 95 [2024-11-28 04:46:05,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:05,030 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 216 transitions. [2024-11-28 04:46:05,031 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:46:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 216 transitions. [2024-11-28 04:46:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:46:05,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:05,033 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:05,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:05,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:46:05,233 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:05,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:05,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1584848223, now seen corresponding path program 1 times [2024-11-28 04:46:05,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:05,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392295618] [2024-11-28 04:46:05,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:05,234 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 [2024-11-28 04:46:05,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:46:05,236 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:46:05,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:46:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:05,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:46:05,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:46:05,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:05,671 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:05,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392295618] [2024-11-28 04:46:05,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392295618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:05,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:05,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306117729] [2024-11-28 04:46:05,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:05,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:05,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:05,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:05,672 INFO L87 Difference]: Start difference. First operand 164 states and 216 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:46:06,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:06,512 INFO L93 Difference]: Finished difference Result 255 states and 339 transitions. [2024-11-28 04:46:06,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:06,513 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2024-11-28 04:46:06,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:06,514 INFO L225 Difference]: With dead ends: 255 [2024-11-28 04:46:06,517 INFO L226 Difference]: Without dead ends: 167 [2024-11-28 04:46:06,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:06,519 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:06,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:46:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-28 04:46:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-28 04:46:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 144 states have (on average 1.2708333333333333) internal successors, (183), 144 states have internal predecessors, (183), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:46:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2024-11-28 04:46:06,540 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 96 [2024-11-28 04:46:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:06,541 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2024-11-28 04:46:06,541 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:46:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2024-11-28 04:46:06,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:46:06,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:06,542 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:06,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:06,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:46:06,743 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:06,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1900772447, now seen corresponding path program 1 times [2024-11-28 04:46:06,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:06,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143603456] [2024-11-28 04:46:06,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:06,744 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 [2024-11-28 04:46:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:46:06,746 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:46:06,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:47:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:37,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:47:37,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:37,800 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 24 treesize of output 9 [2024-11-28 04:47:37,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:47:38,072 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 [2024-11-28 04:47:38,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 04:47:38,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:38,416 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 26 [2024-11-28 04:47:38,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:38,555 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 29 treesize of output 11 [2024-11-28 04:47:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 04:47:38,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:39,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-28 04:47:39,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:39,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143603456] [2024-11-28 04:47:39,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143603456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:39,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1258908586] [2024-11-28 04:47:39,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:39,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:39,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:47:39,660 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:47:39,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-28 04:47:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:41,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:47:41,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:41,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2024-11-28 04:47:41,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:41,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 04:47:42,408 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 [2024-11-28 04:47:42,847 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 20 treesize of output 19 [2024-11-28 04:47:42,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:42,983 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 31 treesize of output 22 [2024-11-28 04:47:43,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:43,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:47:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 04:47:43,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:43,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1258908586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:43,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:47:43,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 04:47:43,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355060641] [2024-11-28 04:47:43,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:43,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:47:43,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:43,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:47:43,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:47:43,953 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:47:48,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:52,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:53,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:53,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:53,527 INFO L93 Difference]: Finished difference Result 326 states and 424 transitions. [2024-11-28 04:47:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:47:53,528 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 96 [2024-11-28 04:47:53,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:53,530 INFO L225 Difference]: With dead ends: 326 [2024-11-28 04:47:53,530 INFO L226 Difference]: Without dead ends: 224 [2024-11-28 04:47:53,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=392, Invalid=1248, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:47:53,531 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 227 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:53,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 581 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-28 04:47:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-28 04:47:53,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 181. [2024-11-28 04:47:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 157 states have (on average 1.2547770700636942) internal successors, (197), 157 states have internal predecessors, (197), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:47:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 233 transitions. [2024-11-28 04:47:53,553 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 233 transitions. Word has length 96 [2024-11-28 04:47:53,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:53,553 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 233 transitions. [2024-11-28 04:47:53,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:47:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 233 transitions. [2024-11-28 04:47:53,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:47:53,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:53,555 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:53,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-28 04:47:53,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:47:53,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:47:53,956 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:53,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1681917729, now seen corresponding path program 1 times [2024-11-28 04:47:53,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:53,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955560130] [2024-11-28 04:47:53,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:53,958 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 [2024-11-28 04:47:53,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:53,962 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:47:53,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:49:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:26,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:49:26,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:26,898 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 24 treesize of output 9 [2024-11-28 04:49:26,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:49:27,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:49:27,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:49:27,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:49:27,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:49:27,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 04:49:27,785 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 [2024-11-28 04:49:27,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:27,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2024-11-28 04:49:27,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:27,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2024-11-28 04:49:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 60 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 04:49:28,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:28,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 04:49:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:49:28,908 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:28,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955560130] [2024-11-28 04:49:28,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955560130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:28,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:49:28,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 15 [2024-11-28 04:49:28,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320832173] [2024-11-28 04:49:28,909 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:28,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:49:28,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:28,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:49:28,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:49:28,910 INFO L87 Difference]: Start difference. First operand 181 states and 233 transitions. Second operand has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 15 states have internal predecessors, (96), 6 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:49:35,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:49:36,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:49:36,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:36,964 INFO L93 Difference]: Finished difference Result 341 states and 437 transitions. [2024-11-28 04:49:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:49:36,965 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 15 states have internal predecessors, (96), 6 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 96 [2024-11-28 04:49:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:36,967 INFO L225 Difference]: With dead ends: 341 [2024-11-28 04:49:36,967 INFO L226 Difference]: Without dead ends: 235 [2024-11-28 04:49:36,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:49:36,968 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 393 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:36,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 374 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-28 04:49:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-28 04:49:36,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 228. [2024-11-28 04:49:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 200 states have (on average 1.235) internal successors, (247), 201 states have internal predecessors, (247), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:49:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2024-11-28 04:49:37,001 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 96 [2024-11-28 04:49:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:37,001 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2024-11-28 04:49:37,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 15 states have internal predecessors, (96), 6 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:49:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2024-11-28 04:49:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:49:37,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:37,004 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:37,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-28 04:49:37,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:49:37,204 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:37,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1522891142, now seen corresponding path program 1 times [2024-11-28 04:49:37,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:37,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2311573] [2024-11-28 04:49:37,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:37,205 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 [2024-11-28 04:49:37,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:49:37,208 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-28 04:49:37,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e00227a-f77a-4615-b4bd-c039d367b95b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process