./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 5f16d1adb8682acc1fc66a4b182b8627cb818a2290d361b76dba0e274a32e4a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:15,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:15,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:15,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:15,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:15,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:15,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:15,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:15,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:15,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:15,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:15,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:15,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:15,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:15,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:15,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:15,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:15,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:15,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:15,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:15,431 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:15,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:15,432 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:15,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:15,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:15,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:15,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:15,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:15,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:15,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:15,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:15,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:15,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:15,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:15,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:15,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:15,435 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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 -> 5f16d1adb8682acc1fc66a4b182b8627cb818a2290d361b76dba0e274a32e4a7 [2024-11-28 02:07:15,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:15,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:15,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:15,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:15,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:15,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i [2024-11-28 02:07:18,683 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/9a6431f15/5e5ca66cd42e46e69437fc8ae4c5dce4/FLAG0225a0176 [2024-11-28 02:07:18,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:18,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i [2024-11-28 02:07:19,009 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/9a6431f15/5e5ca66cd42e46e69437fc8ae4c5dce4/FLAG0225a0176 [2024-11-28 02:07:19,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/9a6431f15/5e5ca66cd42e46e69437fc8ae4c5dce4 [2024-11-28 02:07:19,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:19,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:19,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:19,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:19,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:19,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343e97c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19, skipping insertion in model container [2024-11-28 02:07:19,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:19,240 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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i[916,929] [2024-11-28 02:07:19,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:19,341 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:19,354 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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i[916,929] [2024-11-28 02:07:19,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:19,458 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:19,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19 WrapperNode [2024-11-28 02:07:19,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:19,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:19,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:19,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:19,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,548 INFO L138 Inliner]: procedures = 30, calls = 187, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 579 [2024-11-28 02:07:19,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:19,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:19,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:19,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:19,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,586 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 02:07:19,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:19,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:19,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:19,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:19,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:19,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:19,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:19,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:07:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:19,832 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:19,834 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:20,615 INFO L? ?]: Removed 171 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:20,616 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:20,632 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:20,633 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:20,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:20 BoogieIcfgContainer [2024-11-28 02:07:20,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:20,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:20,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:20,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:20,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:19" (1/3) ... [2024-11-28 02:07:20,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7031a09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:20, skipping insertion in model container [2024-11-28 02:07:20,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (2/3) ... [2024-11-28 02:07:20,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7031a09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:20, skipping insertion in model container [2024-11-28 02:07:20,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:20" (3/3) ... [2024-11-28 02:07:20,646 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-91.i [2024-11-28 02:07:20,663 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:20,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-91.i that has 2 procedures, 125 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:07:20,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:20,751 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;@588e58a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:20,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 105 states have (on average 1.4285714285714286) internal successors, (150), 106 states have internal predecessors, (150), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:07:20,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:20,772 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:20,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:20,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:20,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1547036373, now seen corresponding path program 1 times [2024-11-28 02:07:20,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:20,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752405912] [2024-11-28 02:07:20,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:20,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 02:07:21,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:21,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752405912] [2024-11-28 02:07:21,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752405912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:21,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503852852] [2024-11-28 02:07:21,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:21,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:21,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:21,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:21,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 02:07:21,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:21,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503852852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:21,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:21,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:07:21,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277655829] [2024-11-28 02:07:21,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:21,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:21,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:21,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:21,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:21,636 INFO L87 Difference]: Start difference. First operand has 125 states, 105 states have (on average 1.4285714285714286) internal successors, (150), 106 states have internal predecessors, (150), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:21,672 INFO L93 Difference]: Finished difference Result 243 states and 379 transitions. [2024-11-28 02:07:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:21,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-28 02:07:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:21,682 INFO L225 Difference]: With dead ends: 243 [2024-11-28 02:07:21,682 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 02:07:21,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 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 02:07:21,689 INFO L435 NwaCegarLoop]: 177 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, 177 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 02:07:21,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 02:07:21,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-28 02:07:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.4019607843137254) internal successors, (143), 102 states have internal predecessors, (143), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2024-11-28 02:07:21,737 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 138 [2024-11-28 02:07:21,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:21,737 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2024-11-28 02:07:21,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:21,738 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2024-11-28 02:07:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:07:21,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:21,741 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:21,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:21,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:21,946 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:21,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash -279486921, now seen corresponding path program 1 times [2024-11-28 02:07:21,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:21,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301076047] [2024-11-28 02:07:21,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 02:07:22,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:22,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301076047] [2024-11-28 02:07:22,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301076047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:22,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323177097] [2024-11-28 02:07:22,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:22,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:22,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:22,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:22,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:23,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:07:23,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:23,159 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:07:23,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323177097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:23,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:23,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-28 02:07:23,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609285191] [2024-11-28 02:07:23,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:23,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:23,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:23,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:23,166 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:07:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:23,239 INFO L93 Difference]: Finished difference Result 241 states and 354 transitions. [2024-11-28 02:07:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:23,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-28 02:07:23,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:23,243 INFO L225 Difference]: With dead ends: 241 [2024-11-28 02:07:23,243 INFO L226 Difference]: Without dead ends: 123 [2024-11-28 02:07:23,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:23,248 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:23,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:23,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-28 02:07:23,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-28 02:07:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3942307692307692) internal successors, (145), 104 states have internal predecessors, (145), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:23,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 179 transitions. [2024-11-28 02:07:23,275 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 179 transitions. Word has length 138 [2024-11-28 02:07:23,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:23,280 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 179 transitions. [2024-11-28 02:07:23,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:07:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 179 transitions. [2024-11-28 02:07:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:07:23,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:23,284 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:23,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:23,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 02:07:23,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:23,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:23,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1190705362, now seen corresponding path program 1 times [2024-11-28 02:07:23,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:23,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432029826] [2024-11-28 02:07:23,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:07:23,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001594609] [2024-11-28 02:07:23,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:23,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:23,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:23,791 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:23,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:07:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:25,311 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:07:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:26,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:07:26,352 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:07:26,353 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:07:26,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:07:26,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:26,560 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 02:07:26,673 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:07:26,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:07:26 BoogieIcfgContainer [2024-11-28 02:07:26,679 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:07:26,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:07:26,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:07:26,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:07:26,684 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:20" (3/4) ... [2024-11-28 02:07:26,687 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:07:26,688 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:07:26,690 INFO L158 Benchmark]: Toolchain (without parser) took 7649.60ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 119.0MB in the beginning and 261.6MB in the end (delta: -142.7MB). Peak memory consumption was 129.0MB. Max. memory is 16.1GB. [2024-11-28 02:07:26,690 INFO L158 Benchmark]: CDTParser took 1.24ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:26,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.62ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 101.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:07:26,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.82ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 97.9MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:26,691 INFO L158 Benchmark]: Boogie Preprocessor took 75.36ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 94.1MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:26,692 INFO L158 Benchmark]: RCFGBuilder took 1005.77ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 110.0MB in the end (delta: -15.8MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2024-11-28 02:07:26,692 INFO L158 Benchmark]: TraceAbstraction took 6044.15ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 109.4MB in the beginning and 261.7MB in the end (delta: -152.3MB). Peak memory consumption was 122.8MB. Max. memory is 16.1GB. [2024-11-28 02:07:26,693 INFO L158 Benchmark]: Witness Printer took 6.35ms. Allocated memory is still 419.4MB. Free memory was 261.7MB in the beginning and 261.6MB in the end (delta: 17.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:26,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.62ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 101.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.82ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 97.9MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 75.36ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 94.1MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1005.77ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 110.0MB in the end (delta: -15.8MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6044.15ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 109.4MB in the beginning and 261.7MB in the end (delta: -152.3MB). Peak memory consumption was 122.8MB. Max. memory is 16.1GB. * Witness Printer took 6.35ms. Allocated memory is still 419.4MB. Free memory was 261.7MB in the beginning and 261.6MB in the end (delta: 17.6kB). 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 89, overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 119, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someUnaryDOUBLEoperation at line 46. Possible FailurePath: [L38] unsigned char isInitial = 0; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 100000000, 49.25, 64, 64, 1, 8.4, -0.25, -4, 64, 16, 10, 100, 128, 10 }; VAL [WrapperStruct00={4:0}, isInitial=0] [L123] isInitial = 1 [L124] FCALL initially() [L126] FCALL updateLastVariables() [L127] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L89] EXPR WrapperStruct00.var_1_2 [L89] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L89] EXPR WrapperStruct00.var_1_2 [L89] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L89] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L89] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ulong() [L91] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L94] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] WrapperStruct00.var_1_6 = __VERIFIER_nondet_float() [L97] EXPR WrapperStruct00.var_1_6 [L97] EXPR WrapperStruct00.var_1_6 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F [L97] EXPR WrapperStruct00.var_1_6 [L97] EXPR WrapperStruct00.var_1_6 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L97] EXPR (WrapperStruct00.var_1_6 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] CALL assume_abort_if_not((WrapperStruct00.var_1_6 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L97] RET assume_abort_if_not((WrapperStruct00.var_1_6 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] WrapperStruct00.var_1_7 = __VERIFIER_nondet_float() [L99] EXPR WrapperStruct00.var_1_7 [L99] EXPR WrapperStruct00.var_1_7 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_7 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_7 [L99] EXPR WrapperStruct00.var_1_7 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_7 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR (WrapperStruct00.var_1_7 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_7 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_7 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] WrapperStruct00.var_1_8 = __VERIFIER_nondet_short() [L101] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -32767) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L103] WrapperStruct00.var_1_10 = __VERIFIER_nondet_ulong() [L104] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] WrapperStruct00.var_1_11 = __VERIFIER_nondet_ulong() [L107] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] WrapperStruct00.var_1_14 = __VERIFIER_nondet_short() [L110] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L112] WrapperStruct00.var_1_15 = __VERIFIER_nondet_short() [L113] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L127] RET updateVariables() [L128] CALL step() [L58] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L58] COND FALSE !(WrapperStruct00.var_1_2 >= 50.4f) [L61] EXPR WrapperStruct00.var_1_3 [L61] EXPR WrapperStruct00.var_1_1 [L61] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L61] COND FALSE !(WrapperStruct00.var_1_3 == (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_4)) [L68] EXPR WrapperStruct00.var_1_8 [L68] WrapperStruct00.var_1_5 = WrapperStruct00.var_1_8 [L70] EXPR WrapperStruct00.var_1_4 [L70] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L70] COND FALSE !(! (WrapperStruct00.var_1_4 < WrapperStruct00.var_1_3)) [L73] EXPR WrapperStruct00.var_1_11 [L73] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L73] EXPR ((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10) [L73] EXPR WrapperStruct00.var_1_11 [L73] EXPR ((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1] [L73] WrapperStruct00.var_1_9 = ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))) [L75] EXPR WrapperStruct00.var_1_10 [L75] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L75] COND FALSE !(WrapperStruct00.var_1_10 > WrapperStruct00.var_1_9) [L84] EXPR WrapperStruct00.var_1_15 [L84] WrapperStruct00.var_1_12 = WrapperStruct00.var_1_15 [L128] RET step() [L129] CALL, EXPR property() [L119] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (WrapperStruct00.var_1_2 >= 50.4f) ? (WrapperStruct00.var_1_1 == ((unsigned long int) ((((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : 1 [L119] EXPR WrapperStruct00.var_1_1 [L119] EXPR WrapperStruct00.var_1_3 [L119] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4) [L119] EXPR WrapperStruct00.var_1_3 [L119] EXPR ((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (WrapperStruct00.var_1_2 >= 50.4f) ? (WrapperStruct00.var_1_1 == ((unsigned long int) ((((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_2 >= 50.4f) ? (WrapperStruct00.var_1_1 == ((unsigned long int) ((((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : 1) && ((WrapperStruct00.var_1_3 == (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_4)) ? ((WrapperStruct00.var_1_2 >= (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_5 == ((signed short int) 32))) : (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8))) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (((WrapperStruct00.var_1_2 >= 50.4f) ? (WrapperStruct00.var_1_1 == ((unsigned long int) ((((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : 1) && ((WrapperStruct00.var_1_3 == (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_4)) ? ((WrapperStruct00.var_1_2 >= (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_5 == ((signed short int) 32))) : (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)))) && ((! (WrapperStruct00.var_1_4 < WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_9 == ((unsigned long int) ((((((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < (((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) ? (((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) : (((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11)))))))) : (WrapperStruct00.var_1_9 == ((unsigned long int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10)))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((((WrapperStruct00.var_1_2 >= 50.4f) ? (WrapperStruct00.var_1_1 == ((unsigned long int) ((((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : 1) && ((WrapperStruct00.var_1_3 == (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_4)) ? ((WrapperStruct00.var_1_2 >= (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_5 == ((signed short int) 32))) : (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)))) && ((! (WrapperStruct00.var_1_4 < WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_9 == ((unsigned long int) ((((((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < (((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) ? (((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) : (((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11)))))))) : (WrapperStruct00.var_1_9 == ((unsigned long int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_9) ? ((63.1 >= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_7 >= WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_12 == ((signed short int) (WrapperStruct00.var_1_14 - WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_12 == ((signed short int) WrapperStruct00.var_1_14))) : 1) : (WrapperStruct00.var_1_12 == ((signed short int) WrapperStruct00.var_1_15))) VAL [WrapperStruct00={4:0}, isInitial=1] [L119-L120] return ((((WrapperStruct00.var_1_2 >= 50.4f) ? (WrapperStruct00.var_1_1 == ((unsigned long int) ((((WrapperStruct00.var_1_3) > (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))))) : 1) && ((WrapperStruct00.var_1_3 == (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_4)) ? ((WrapperStruct00.var_1_2 >= (WrapperStruct00.var_1_6 + WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_5 == ((signed short int) 32))) : (WrapperStruct00.var_1_5 == ((signed short int) WrapperStruct00.var_1_8)))) && ((! (WrapperStruct00.var_1_4 < WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_9 == ((unsigned long int) ((((((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < (((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) ? (((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) : (((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11)))))))) : (WrapperStruct00.var_1_9 == ((unsigned long int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_9) ? ((63.1 >= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_7 >= WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_12 == ((signed short int) (WrapperStruct00.var_1_14 - WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_12 == ((signed short int) WrapperStruct00.var_1_14))) : 1) : (WrapperStruct00.var_1_12 == ((signed short int) WrapperStruct00.var_1_15))) ; [L129] RET, EXPR property() [L129] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 691 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 339 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 352 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 832 NumberOfCodeBlocks, 832 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 548 ConstructedInterpolants, 0 QuantifiedInterpolants, 561 SizeOfPredicates, 0 NumberOfNonLiveVariables, 974 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2099/2176 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 02:07:26,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 5f16d1adb8682acc1fc66a4b182b8627cb818a2290d361b76dba0e274a32e4a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:29,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:29,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:07:29,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:29,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:29,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:29,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:29,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:29,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:29,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:29,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:29,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:29,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:29,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:29,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:29,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:29,785 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:07:29,785 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:07:29,785 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:07:29,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:29,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:29,786 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:29,786 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:29,786 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:29,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:29,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:29,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:29,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:29,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:29,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:29,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:29,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:29,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:29,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:29,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:29,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:29,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:29,789 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:07:29,789 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:07:29,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:29,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:29,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:29,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:29,790 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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 -> 5f16d1adb8682acc1fc66a4b182b8627cb818a2290d361b76dba0e274a32e4a7 [2024-11-28 02:07:30,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:30,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:30,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:30,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:30,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:30,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i [2024-11-28 02:07:33,218 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/62b2c068c/6662c804b8e44fc2bb13b47f568b6018/FLAGe74b3f637 [2024-11-28 02:07:33,497 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:33,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i [2024-11-28 02:07:33,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/62b2c068c/6662c804b8e44fc2bb13b47f568b6018/FLAGe74b3f637 [2024-11-28 02:07:33,534 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/data/62b2c068c/6662c804b8e44fc2bb13b47f568b6018 [2024-11-28 02:07:33,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:33,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:33,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:33,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:33,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:33,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322b11f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:33, skipping insertion in model container [2024-11-28 02:07:33,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:33" (1/1) ... [2024-11-28 02:07:33,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:33,781 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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i[916,929] [2024-11-28 02:07:33,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:33,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:33,923 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_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-91.i[916,929] [2024-11-28 02:07:34,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:34,072 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:34,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34 WrapperNode [2024-11-28 02:07:34,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:34,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:34,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:34,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:34,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,149 INFO L138 Inliner]: procedures = 36, calls = 187, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 575 [2024-11-28 02:07:34,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:34,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:34,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:34,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:34,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,228 INFO L175 MemorySlicer]: Split 159 memory accesses to 2 slices as follows [2, 157]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 34 writes are split as follows [0, 34]. [2024-11-28 02:07:34,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:34,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:34,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:34,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:34,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (1/1) ... [2024-11-28 02:07:34,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:34,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:34,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:34,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:07:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:07:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 02:07:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 02:07:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:07:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:07:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-28 02:07:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-28 02:07:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-28 02:07:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-28 02:07:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 02:07:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 02:07:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-28 02:07:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-28 02:07:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-28 02:07:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-28 02:07:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-28 02:07:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-28 02:07:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:07:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:07:34,674 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:34,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:36,554 INFO L? ?]: Removed 171 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:36,554 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:36,571 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:36,571 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:36,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:36 BoogieIcfgContainer [2024-11-28 02:07:36,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:36,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:36,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:36,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:36,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:33" (1/3) ... [2024-11-28 02:07:36,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4bbe10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:36, skipping insertion in model container [2024-11-28 02:07:36,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:34" (2/3) ... [2024-11-28 02:07:36,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4bbe10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:36, skipping insertion in model container [2024-11-28 02:07:36,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:36" (3/3) ... [2024-11-28 02:07:36,583 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-91.i [2024-11-28 02:07:36,597 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:36,599 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-91.i that has 2 procedures, 125 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:07:36,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:36,684 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;@1ff4dd80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:36,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 105 states have (on average 1.4285714285714286) internal successors, (150), 106 states have internal predecessors, (150), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:36,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:07:36,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:36,706 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:36,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:36,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash -267119193, now seen corresponding path program 1 times [2024-11-28 02:07:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83235336] [2024-11-28 02:07:36,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:36,721 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 02:07:36,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:36,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:36,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:37,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:37,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-28 02:07:37,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:37,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:37,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83235336] [2024-11-28 02:07:37,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83235336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:37,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:37,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:37,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811445870] [2024-11-28 02:07:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:37,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:37,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:37,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:37,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:37,215 INFO L87 Difference]: Start difference. First operand has 125 states, 105 states have (on average 1.4285714285714286) internal successors, (150), 106 states have internal predecessors, (150), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:37,258 INFO L93 Difference]: Finished difference Result 243 states and 379 transitions. [2024-11-28 02:07:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-28 02:07:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:37,268 INFO L225 Difference]: With dead ends: 243 [2024-11-28 02:07:37,269 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 02:07:37,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 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 02:07:37,275 INFO L435 NwaCegarLoop]: 177 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, 177 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 02:07:37,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 02:07:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-28 02:07:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.4019607843137254) internal successors, (143), 102 states have internal predecessors, (143), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:37,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2024-11-28 02:07:37,313 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 138 [2024-11-28 02:07:37,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:37,314 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2024-11-28 02:07:37,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:37,314 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2024-11-28 02:07:37,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:07:37,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:37,318 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:37,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:37,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:37,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:37,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2093642487, now seen corresponding path program 1 times [2024-11-28 02:07:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441312947] [2024-11-28 02:07:37,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:37,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:07:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:37,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:37,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:37,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:07:37,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-28 02:07:37,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:37,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:37,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441312947] [2024-11-28 02:07:37,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441312947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:37,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:37,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:37,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457220183] [2024-11-28 02:07:37,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:37,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:37,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:37,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:37,980 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:38,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:38,075 INFO L93 Difference]: Finished difference Result 241 states and 354 transitions. [2024-11-28 02:07:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:38,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-28 02:07:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:38,078 INFO L225 Difference]: With dead ends: 241 [2024-11-28 02:07:38,078 INFO L226 Difference]: Without dead ends: 123 [2024-11-28 02:07:38,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 135 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 02:07:38,081 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 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 02:07:38,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-28 02:07:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-28 02:07:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3942307692307692) internal successors, (145), 104 states have internal predecessors, (145), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 179 transitions. [2024-11-28 02:07:38,107 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 179 transitions. Word has length 138 [2024-11-28 02:07:38,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:38,109 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 179 transitions. [2024-11-28 02:07:38,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:07:38,109 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 179 transitions. [2024-11-28 02:07:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:07:38,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:38,116 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:38,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:38,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:38,316 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:38,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:38,317 INFO L85 PathProgramCache]: Analyzing trace with hash -153060473, now seen corresponding path program 1 times [2024-11-28 02:07:38,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:38,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076700559] [2024-11-28 02:07:38,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:38,318 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 02:07:38,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:38,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:38,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:38,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:07:38,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:07:38,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:38,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:38,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076700559] [2024-11-28 02:07:38,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076700559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:38,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:38,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:38,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875113804] [2024-11-28 02:07:38,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:38,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:38,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:38,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:38,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:38,826 INFO L87 Difference]: Start difference. First operand 123 states and 179 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:07:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:38,904 INFO L93 Difference]: Finished difference Result 245 states and 358 transitions. [2024-11-28 02:07:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:38,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-28 02:07:38,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:38,909 INFO L225 Difference]: With dead ends: 245 [2024-11-28 02:07:38,909 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 02:07:38,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 135 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 02:07:38,913 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:38,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:38,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 02:07:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-28 02:07:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 106 states have (on average 1.3867924528301887) internal successors, (147), 106 states have internal predecessors, (147), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:07:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 181 transitions. [2024-11-28 02:07:38,938 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 181 transitions. Word has length 138 [2024-11-28 02:07:38,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:38,939 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 181 transitions. [2024-11-28 02:07:38,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:07:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 181 transitions. [2024-11-28 02:07:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:07:38,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:38,946 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:38,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:39,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:39,147 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:39,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1792921273, now seen corresponding path program 1 times [2024-11-28 02:07:39,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:39,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987696815] [2024-11-28 02:07:39,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:39,149 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 02:07:39,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:39,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:39,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:39,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 02:07:39,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:39,745 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 02:07:39,871 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 02:07:39,967 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 02:07:40,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 02:07:40,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:40,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 02:07:40,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:40,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 51 [2024-11-28 02:07:40,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:40,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 54 [2024-11-28 02:07:41,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:41,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 65 [2024-11-28 02:07:41,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:41,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 47 [2024-11-28 02:07:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 02:07:41,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:41,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:41,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987696815] [2024-11-28 02:07:41,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987696815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:41,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:41,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:07:41,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034446062] [2024-11-28 02:07:41,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:41,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:07:41,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:41,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:07:41,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:07:41,422 INFO L87 Difference]: Start difference. First operand 125 states and 181 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 02:07:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:47,967 INFO L93 Difference]: Finished difference Result 426 states and 614 transitions. [2024-11-28 02:07:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:07:47,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2024-11-28 02:07:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:47,975 INFO L225 Difference]: With dead ends: 426 [2024-11-28 02:07:47,978 INFO L226 Difference]: Without dead ends: 304 [2024-11-28 02:07:47,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:07:47,980 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 675 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:47,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 552 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 02:07:47,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-28 02:07:48,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 220. [2024-11-28 02:07:48,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 193 states have (on average 1.4041450777202074) internal successors, (271), 194 states have internal predecessors, (271), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 02:07:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 319 transitions. [2024-11-28 02:07:48,039 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 319 transitions. Word has length 140 [2024-11-28 02:07:48,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:48,040 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 319 transitions. [2024-11-28 02:07:48,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 02:07:48,040 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 319 transitions. [2024-11-28 02:07:48,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:07:48,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:48,044 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:48,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Ended with exit code 0 [2024-11-28 02:07:48,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:48,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:48,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1867529438, now seen corresponding path program 1 times [2024-11-28 02:07:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:48,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891869155] [2024-11-28 02:07:48,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:48,246 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 02:07:48,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:48,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:48,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:07:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:48,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 02:07:48,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:48,691 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 02:07:49,143 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 80 treesize of output 34 [2024-11-28 02:07:49,403 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 80 treesize of output 34 [2024-11-28 02:07:49,640 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 80 treesize of output 34 [2024-11-28 02:07:49,844 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 80 treesize of output 34 [2024-11-28 02:07:50,015 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 75 treesize of output 44 [2024-11-28 02:07:50,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:50,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 47 [2024-11-28 02:07:50,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:50,802 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 90 treesize of output 47 [2024-11-28 02:07:51,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:51,140 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 85 treesize of output 57 [2024-11-28 02:07:51,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:51,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 70 [2024-11-28 02:07:52,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:52,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 73 [2024-11-28 02:07:52,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:52,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 73 [2024-11-28 02:07:52,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:52,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 84 [2024-11-28 02:07:52,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:07:52,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 130 treesize of output 52 [2024-11-28 02:07:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 02:07:52,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:52,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:52,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891869155] [2024-11-28 02:07:52,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891869155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:52,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:52,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:07:52,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699831523] [2024-11-28 02:07:52,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:52,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:07:52,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:52,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:07:52,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:07:52,908 INFO L87 Difference]: Start difference. First operand 220 states and 319 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 02:08:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:00,619 INFO L93 Difference]: Finished difference Result 731 states and 1048 transitions. [2024-11-28 02:08:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:08:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2024-11-28 02:08:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:00,624 INFO L225 Difference]: With dead ends: 731 [2024-11-28 02:08:00,624 INFO L226 Difference]: Without dead ends: 514 [2024-11-28 02:08:00,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:08:00,625 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 487 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:00,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 441 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-28 02:08:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-28 02:08:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 331. [2024-11-28 02:08:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 283 states have (on average 1.3886925795053005) internal successors, (393), 284 states have internal predecessors, (393), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 02:08:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 475 transitions. [2024-11-28 02:08:00,674 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 475 transitions. Word has length 140 [2024-11-28 02:08:00,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:00,674 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 475 transitions. [2024-11-28 02:08:00,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 02:08:00,675 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 475 transitions. [2024-11-28 02:08:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:08:00,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:00,677 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:00,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Ended with exit code 0 [2024-11-28 02:08:00,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:00,878 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:00,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:00,878 INFO L85 PathProgramCache]: Analyzing trace with hash -468575836, now seen corresponding path program 1 times [2024-11-28 02:08:00,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:00,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992238999] [2024-11-28 02:08:00,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:00,879 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 02:08:00,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:08:00,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:00,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:01,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:08:01,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:08:01,155 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:01,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:01,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992238999] [2024-11-28 02:08:01,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992238999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:01,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:01,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:01,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789843497] [2024-11-28 02:08:01,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:01,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:01,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:01,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:01,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:01,157 INFO L87 Difference]: Start difference. First operand 331 states and 475 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:08:01,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:01,230 INFO L93 Difference]: Finished difference Result 659 states and 947 transitions. [2024-11-28 02:08:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:01,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-28 02:08:01,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:01,233 INFO L225 Difference]: With dead ends: 659 [2024-11-28 02:08:01,233 INFO L226 Difference]: Without dead ends: 331 [2024-11-28 02:08:01,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 137 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 02:08:01,235 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:01,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 518 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:01,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-28 02:08:01,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2024-11-28 02:08:01,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 283 states have (on average 1.3816254416961131) internal successors, (391), 284 states have internal predecessors, (391), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 02:08:01,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 473 transitions. [2024-11-28 02:08:01,285 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 473 transitions. Word has length 140 [2024-11-28 02:08:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:01,285 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 473 transitions. [2024-11-28 02:08:01,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:08:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 473 transitions. [2024-11-28 02:08:01,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 02:08:01,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:01,288 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:01,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:01,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:01,489 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:01,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1840942404, now seen corresponding path program 1 times [2024-11-28 02:08:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:01,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893728064] [2024-11-28 02:08:01,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:01,490 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 02:08:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:08:01,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:01,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:01,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:08:01,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:01,889 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 02:08:02,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:02,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 31 [2024-11-28 02:08:02,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:02,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 31 [2024-11-28 02:08:02,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:02,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 51 [2024-11-28 02:08:02,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:02,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 20 [2024-11-28 02:08:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:08:02,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:02,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:02,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893728064] [2024-11-28 02:08:02,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893728064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:02,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:02,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:02,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074257845] [2024-11-28 02:08:02,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:02,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:02,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:02,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:02,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:02,855 INFO L87 Difference]: Start difference. First operand 331 states and 473 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:08:08,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:14,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:18,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:22,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:30,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:34,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:38,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:38,392 INFO L93 Difference]: Finished difference Result 757 states and 1081 transitions. [2024-11-28 02:08:38,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:08:38,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-28 02:08:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:38,398 INFO L225 Difference]: With dead ends: 757 [2024-11-28 02:08:38,399 INFO L226 Difference]: Without dead ends: 429 [2024-11-28 02:08:38,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:08:38,400 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 180 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:38,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 624 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 7 Unknown, 0 Unchecked, 35.1s Time] [2024-11-28 02:08:38,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-28 02:08:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 348. [2024-11-28 02:08:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 300 states have (on average 1.3833333333333333) internal successors, (415), 301 states have internal predecessors, (415), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 02:08:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 497 transitions. [2024-11-28 02:08:38,454 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 497 transitions. Word has length 141 [2024-11-28 02:08:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:38,455 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 497 transitions. [2024-11-28 02:08:38,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:08:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 497 transitions. [2024-11-28 02:08:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:08:38,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:38,460 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:38,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:38,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:38,661 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:38,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:38,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1311178974, now seen corresponding path program 1 times [2024-11-28 02:08:38,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:38,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570491040] [2024-11-28 02:08:38,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:38,662 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 02:08:38,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:08:38,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:38,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:08:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:39,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:08:39,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:39,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:08:39,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:39,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 32 [2024-11-28 02:08:39,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:39,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 32 [2024-11-28 02:08:39,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:39,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 52 [2024-11-28 02:08:39,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:39,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 21 [2024-11-28 02:08:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:08:40,035 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:40,035 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:40,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570491040] [2024-11-28 02:08:40,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570491040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:40,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:40,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137292923] [2024-11-28 02:08:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:40,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:40,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:40,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:40,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:40,037 INFO L87 Difference]: Start difference. First operand 348 states and 497 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:08:44,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:51,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:55,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:59,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:06,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:10,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:10,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:10,715 INFO L93 Difference]: Finished difference Result 819 states and 1169 transitions. [2024-11-28 02:09:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:09:10,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-28 02:09:10,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:10,721 INFO L225 Difference]: With dead ends: 819 [2024-11-28 02:09:10,721 INFO L226 Difference]: Without dead ends: 474 [2024-11-28 02:09:10,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:09:10,723 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 172 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:10,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 491 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 359 Invalid, 6 Unknown, 0 Unchecked, 30.3s Time] [2024-11-28 02:09:10,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-28 02:09:10,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 373. [2024-11-28 02:09:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 325 states have (on average 1.3876923076923078) internal successors, (451), 326 states have internal predecessors, (451), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 02:09:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2024-11-28 02:09:10,759 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 142 [2024-11-28 02:09:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:10,759 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2024-11-28 02:09:10,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:09:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2024-11-28 02:09:10,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:09:10,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:10,762 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:10,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:10,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:10,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:10,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:10,963 INFO L85 PathProgramCache]: Analyzing trace with hash -704608280, now seen corresponding path program 1 times [2024-11-28 02:09:10,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:10,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522902060] [2024-11-28 02:09:10,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:10,964 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 02:09:10,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:10,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:10,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (10)] Waiting until timeout for monitored process [2024-11-28 02:09:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:11,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 02:09:11,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:11,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:09:11,909 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 78 treesize of output 32 [2024-11-28 02:09:12,105 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 78 treesize of output 32 [2024-11-28 02:09:12,366 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 78 treesize of output 32 [2024-11-28 02:09:12,534 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 78 treesize of output 32 [2024-11-28 02:09:12,702 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 78 treesize of output 32 [2024-11-28 02:09:12,913 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 78 treesize of output 32 [2024-11-28 02:09:13,132 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 78 treesize of output 32 [2024-11-28 02:09:13,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 42 [2024-11-28 02:09:13,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:13,740 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 88 treesize of output 45 [2024-11-28 02:09:14,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:14,335 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 89 treesize of output 46 [2024-11-28 02:09:14,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:14,439 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 89 treesize of output 46 [2024-11-28 02:09:14,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:14,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 66 [2024-11-28 02:09:14,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:14,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 42 [2024-11-28 02:09:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 48 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 02:09:14,773 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:09:15,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:09:15,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522902060] [2024-11-28 02:09:15,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522902060] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:15,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:09:15,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 18 [2024-11-28 02:09:15,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610121767] [2024-11-28 02:09:15,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:09:15,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:09:15,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:09:15,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:09:15,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:09:15,162 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:09:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:18,482 INFO L93 Difference]: Finished difference Result 934 states and 1343 transitions. [2024-11-28 02:09:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:09:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-28 02:09:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:18,491 INFO L225 Difference]: With dead ends: 934 [2024-11-28 02:09:18,492 INFO L226 Difference]: Without dead ends: 564 [2024-11-28 02:09:18,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:09:18,494 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 146 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:18,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 292 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 02:09:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-28 02:09:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 373. [2024-11-28 02:09:18,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 325 states have (on average 1.3876923076923078) internal successors, (451), 326 states have internal predecessors, (451), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 02:09:18,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2024-11-28 02:09:18,539 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 142 [2024-11-28 02:09:18,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:18,540 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2024-11-28 02:09:18,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:09:18,540 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2024-11-28 02:09:18,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:09:18,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:18,543 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:18,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (10)] Ended with exit code 0 [2024-11-28 02:09:18,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:18,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:18,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:18,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1512931937, now seen corresponding path program 1 times [2024-11-28 02:09:18,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:18,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832985124] [2024-11-28 02:09:18,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:18,746 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 02:09:18,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:18,748 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:18,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:19,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 02:09:19,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:19,356 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 02:09:19,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:09:19,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:09:19,372 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 02:09:19,463 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 02:09:19,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:19,587 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 32 treesize of output 34 [2024-11-28 02:09:19,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:19,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 37 [2024-11-28 02:09:19,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:19,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 57 [2024-11-28 02:09:19,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:19,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 39 [2024-11-28 02:09:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 02:09:19,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:09:19,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:09:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832985124] [2024-11-28 02:09:19,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832985124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:09:19,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:09:19,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:09:19,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944004703] [2024-11-28 02:09:19,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:09:19,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:09:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:09:19,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:09:19,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:09:19,998 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:09:26,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:26,257 INFO L93 Difference]: Finished difference Result 910 states and 1290 transitions. [2024-11-28 02:09:26,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:09:26,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-28 02:09:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:26,262 INFO L225 Difference]: With dead ends: 910 [2024-11-28 02:09:26,262 INFO L226 Difference]: Without dead ends: 540 [2024-11-28 02:09:26,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:09:26,263 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 360 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:26,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 699 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-28 02:09:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-28 02:09:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 374. [2024-11-28 02:09:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 326 states have (on average 1.3865030674846626) internal successors, (452), 327 states have internal predecessors, (452), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 02:09:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 534 transitions. [2024-11-28 02:09:26,308 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 534 transitions. Word has length 143 [2024-11-28 02:09:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:26,309 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 534 transitions. [2024-11-28 02:09:26,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:09:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 534 transitions. [2024-11-28 02:09:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:09:26,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:26,312 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:26,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Ended with exit code 0 [2024-11-28 02:09:26,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:26,513 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:26,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:26,513 INFO L85 PathProgramCache]: Analyzing trace with hash -811867359, now seen corresponding path program 1 times [2024-11-28 02:09:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:26,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146177678] [2024-11-28 02:09:26,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:26,514 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 02:09:26,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:26,516 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:26,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:09:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:42,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 02:09:42,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:42,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:09:42,778 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 80 treesize of output 34 [2024-11-28 02:09:42,998 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 80 treesize of output 34 [2024-11-28 02:09:43,213 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 80 treesize of output 34 [2024-11-28 02:09:43,933 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 0 case distinctions, treesize of input 140 treesize of output 67 [2024-11-28 02:09:45,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:45,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 110 [2024-11-28 02:09:46,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:46,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 113 [2024-11-28 02:09:46,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:46,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 113 [2024-11-28 02:09:47,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:47,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 113 [2024-11-28 02:09:48,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:48,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 205 treesize of output 123 [2024-11-28 02:09:50,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:50,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 298 treesize of output 150 [2024-11-28 02:09:59,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:59,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 298 treesize of output 150 [2024-11-28 02:10:00,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:10:00,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 300 treesize of output 161 [2024-11-28 02:10:11,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:10:11,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 377 treesize of output 137 [2024-11-28 02:10:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:10:13,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:13,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:10:13,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146177678] [2024-11-28 02:10:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146177678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:13,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 02:10:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759504727] [2024-11-28 02:10:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:13,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 02:10:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:10:13,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 02:10:13,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:10:13,902 INFO L87 Difference]: Start difference. First operand 374 states and 534 transitions. Second operand has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 20 states have internal predecessors, (73), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:10:24,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:40,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:44,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:57,549 WARN L286 SmtUtils]: Spent 7.86s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:11:09,569 WARN L286 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:11:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:29,192 INFO L93 Difference]: Finished difference Result 1342 states and 1890 transitions. [2024-11-28 02:11:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 02:11:29,194 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 20 states have internal predecessors, (73), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 143 [2024-11-28 02:11:29,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:29,200 INFO L225 Difference]: With dead ends: 1342 [2024-11-28 02:11:29,200 INFO L226 Difference]: Without dead ends: 971 [2024-11-28 02:11:29,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 32.8s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2024-11-28 02:11:29,202 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 1012 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 3100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:29,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1121 Invalid, 3100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 53.5s Time] [2024-11-28 02:11:29,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-11-28 02:11:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 458. [2024-11-28 02:11:29,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 392 states have (on average 1.3698979591836735) internal successors, (537), 394 states have internal predecessors, (537), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:11:29,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 645 transitions. [2024-11-28 02:11:29,267 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 645 transitions. Word has length 143 [2024-11-28 02:11:29,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:29,267 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 645 transitions. [2024-11-28 02:11:29,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 20 states have internal predecessors, (73), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:11:29,268 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 645 transitions. [2024-11-28 02:11:29,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:11:29,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:29,270 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:29,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Ended with exit code 0 [2024-11-28 02:11:29,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:11:29,471 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:29,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:29,472 INFO L85 PathProgramCache]: Analyzing trace with hash 976597025, now seen corresponding path program 1 times [2024-11-28 02:11:29,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:11:29,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588176475] [2024-11-28 02:11:29,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:29,472 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 02:11:29,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:11:29,474 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:11:29,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:11:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:46,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-28 02:11:46,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:46,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:11:47,344 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 80 treesize of output 34 [2024-11-28 02:11:47,584 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 80 treesize of output 34 [2024-11-28 02:11:47,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-28 02:11:48,716 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 0 case distinctions, treesize of input 140 treesize of output 67 [2024-11-28 02:11:50,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:11:50,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 110 [2024-11-28 02:11:51,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:11:51,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 113 [2024-11-28 02:11:52,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:11:52,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 113 [2024-11-28 02:11:53,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:11:53,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 113 [2024-11-28 02:11:53,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:11:53,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 205 treesize of output 123 [2024-11-28 02:11:56,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:11:56,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 299 treesize of output 151 [2024-11-28 02:12:03,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:12:03,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 209 treesize of output 115 [2024-11-28 02:12:05,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:12:05,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 211 treesize of output 126 [2024-11-28 02:12:18,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:12:18,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 283 treesize of output 103 [2024-11-28 02:12:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:12:21,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:12:21,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:12:21,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588176475] [2024-11-28 02:12:21,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588176475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:21,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:21,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 02:12:21,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636688764] [2024-11-28 02:12:21,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:21,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:12:21,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:12:21,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:12:21,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:12:21,312 INFO L87 Difference]: Start difference. First operand 458 states and 645 transitions. Second operand has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 21 states have internal predecessors, (73), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:12:53,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:12:57,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:12:58,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:13:02,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:13:13,920 WARN L286 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:13:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:45,440 INFO L93 Difference]: Finished difference Result 1433 states and 2011 transitions. [2024-11-28 02:13:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 02:13:45,441 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 21 states have internal predecessors, (73), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 143 [2024-11-28 02:13:45,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:45,446 INFO L225 Difference]: With dead ends: 1433 [2024-11-28 02:13:45,446 INFO L226 Difference]: Without dead ends: 978 [2024-11-28 02:13:45,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:13:45,448 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 806 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 2797 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2797 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:45,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 952 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2797 Invalid, 2 Unknown, 0 Unchecked, 65.2s Time] [2024-11-28 02:13:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-28 02:13:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 477. [2024-11-28 02:13:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 411 states have (on average 1.367396593673966) internal successors, (562), 413 states have internal predecessors, (562), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:13:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 670 transitions. [2024-11-28 02:13:45,509 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 670 transitions. Word has length 143 [2024-11-28 02:13:45,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:45,510 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 670 transitions. [2024-11-28 02:13:45,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 21 states have internal predecessors, (73), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:13:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 670 transitions. [2024-11-28 02:13:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:13:45,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:45,513 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:45,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:13:45,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:13:45,713 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:45,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1677661603, now seen corresponding path program 1 times [2024-11-28 02:13:45,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:13:45,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786878432] [2024-11-28 02:13:45,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:45,715 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 02:13:45,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:13:45,719 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:13:45,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (14)] Waiting until timeout for monitored process [2024-11-28 02:13:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:46,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:13:46,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:46,191 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 02:13:46,224 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 02:13:46,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:46,240 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 32 treesize of output 34 [2024-11-28 02:13:46,343 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:46,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 30 [2024-11-28 02:13:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:13:46,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:13:46,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:13:46,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786878432] [2024-11-28 02:13:46,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786878432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:46,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:46,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:13:46,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373213387] [2024-11-28 02:13:46,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:46,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:13:46,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:13:46,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:13:46,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:13:46,458 INFO L87 Difference]: Start difference. First operand 477 states and 670 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:13:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:51,186 INFO L93 Difference]: Finished difference Result 1372 states and 1899 transitions. [2024-11-28 02:13:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:13:51,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 02:13:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:51,196 INFO L225 Difference]: With dead ends: 1372 [2024-11-28 02:13:51,196 INFO L226 Difference]: Without dead ends: 898 [2024-11-28 02:13:51,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:13:51,199 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 301 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:51,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1588 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 02:13:51,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-28 02:13:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 597. [2024-11-28 02:13:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 515 states have (on average 1.3514563106796116) internal successors, (696), 518 states have internal predecessors, (696), 69 states have call successors, (69), 12 states have call predecessors, (69), 12 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:13:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 834 transitions. [2024-11-28 02:13:51,304 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 834 transitions. Word has length 143 [2024-11-28 02:13:51,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:51,304 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 834 transitions. [2024-11-28 02:13:51,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:13:51,305 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 834 transitions. [2024-11-28 02:13:51,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:13:51,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:51,307 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:51,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:51,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:13:51,508 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:51,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:51,508 INFO L85 PathProgramCache]: Analyzing trace with hash -570109839, now seen corresponding path program 1 times [2024-11-28 02:13:51,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:13:51,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372736127] [2024-11-28 02:13:51,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:51,509 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 02:13:51,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:13:51,511 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:13:51,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:13:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:51,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:13:51,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:52,000 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 02:13:52,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:52,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 31 [2024-11-28 02:13:52,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:52,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 31 [2024-11-28 02:13:52,558 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:52,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 67 [2024-11-28 02:13:53,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:53,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 27 [2024-11-28 02:13:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:13:53,278 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:13:53,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:13:53,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372736127] [2024-11-28 02:13:53,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372736127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:53,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:53,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:53,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146004170] [2024-11-28 02:13:53,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:53,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:53,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:13:53,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:53,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:53,280 INFO L87 Difference]: Start difference. First operand 597 states and 834 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:13:59,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:04,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:09,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:13,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:21,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:25,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:29,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:29,990 INFO L93 Difference]: Finished difference Result 1281 states and 1787 transitions. [2024-11-28 02:14:29,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:14:29,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 02:14:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:29,997 INFO L225 Difference]: With dead ends: 1281 [2024-11-28 02:14:29,997 INFO L226 Difference]: Without dead ends: 687 [2024-11-28 02:14:29,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:14:29,999 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 146 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:30,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 660 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 485 Invalid, 7 Unknown, 0 Unchecked, 36.2s Time] [2024-11-28 02:14:30,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-28 02:14:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 599. [2024-11-28 02:14:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 517 states have (on average 1.3539651837524178) internal successors, (700), 520 states have internal predecessors, (700), 69 states have call successors, (69), 12 states have call predecessors, (69), 12 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:14:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 838 transitions. [2024-11-28 02:14:30,069 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 838 transitions. Word has length 143 [2024-11-28 02:14:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:30,070 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 838 transitions. [2024-11-28 02:14:30,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:14:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 838 transitions. [2024-11-28 02:14:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:14:30,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:30,072 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:30,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:14:30,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:14:30,273 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:30,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1849973517, now seen corresponding path program 1 times [2024-11-28 02:14:30,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:14:30,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839112890] [2024-11-28 02:14:30,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:30,274 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 02:14:30,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:14:30,276 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:14:30,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 [2024-11-28 02:14:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:30,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:14:30,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:14:30,714 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 02:14:30,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:14:30,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 31 [2024-11-28 02:14:30,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:14:30,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 31 [2024-11-28 02:14:31,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:14:31,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 51 [2024-11-28 02:14:31,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:14:31,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 20 [2024-11-28 02:14:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:14:31,564 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:14:31,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:14:31,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839112890] [2024-11-28 02:14:31,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839112890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:31,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:31,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:14:31,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136204876] [2024-11-28 02:14:31,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:31,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:31,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:14:31,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:31,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:31,566 INFO L87 Difference]: Start difference. First operand 599 states and 838 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:14:36,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:42,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:46,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:51,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:14:59,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:15:03,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:15:07,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:15:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:08,343 INFO L93 Difference]: Finished difference Result 1294 states and 1805 transitions. [2024-11-28 02:15:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:15:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 02:15:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:08,349 INFO L225 Difference]: With dead ends: 1294 [2024-11-28 02:15:08,349 INFO L226 Difference]: Without dead ends: 698 [2024-11-28 02:15:08,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:15:08,351 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 125 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:08,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 700 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 511 Invalid, 7 Unknown, 0 Unchecked, 36.3s Time] [2024-11-28 02:15:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-28 02:15:08,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 594. [2024-11-28 02:15:08,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 512 states have (on average 1.35546875) internal successors, (694), 515 states have internal predecessors, (694), 69 states have call successors, (69), 12 states have call predecessors, (69), 12 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:15:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 832 transitions. [2024-11-28 02:15:08,442 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 832 transitions. Word has length 143 [2024-11-28 02:15:08,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:08,443 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 832 transitions. [2024-11-28 02:15:08,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 832 transitions. [2024-11-28 02:15:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:15:08,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:08,447 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:08,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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)] Ended with exit code 0 [2024-11-28 02:15:08,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:08,648 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:08,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:08,649 INFO L85 PathProgramCache]: Analyzing trace with hash -693425885, now seen corresponding path program 1 times [2024-11-28 02:15:08,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:15:08,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860416665] [2024-11-28 02:15:08,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:08,650 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 02:15:08,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:15:08,652 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (17)] Waiting until timeout for monitored process [2024-11-28 02:15:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:09,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:15:09,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:09,042 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-28 02:15:09,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:15:09,043 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:09,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860416665] [2024-11-28 02:15:09,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860416665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:09,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:09,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:15:09,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693134153] [2024-11-28 02:15:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:09,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:15:09,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:15:09,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:15:09,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:15:09,045 INFO L87 Difference]: Start difference. First operand 594 states and 832 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:15:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:09,145 INFO L93 Difference]: Finished difference Result 1191 states and 1670 transitions. [2024-11-28 02:15:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:15:09,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-28 02:15:09,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:09,148 INFO L225 Difference]: With dead ends: 1191 [2024-11-28 02:15:09,149 INFO L226 Difference]: Without dead ends: 600 [2024-11-28 02:15:09,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 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 02:15:09,151 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:09,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:15:09,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-28 02:15:09,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2024-11-28 02:15:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 518 states have (on average 1.3494208494208495) internal successors, (699), 521 states have internal predecessors, (699), 69 states have call successors, (69), 12 states have call predecessors, (69), 12 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:15:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 837 transitions. [2024-11-28 02:15:09,229 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 837 transitions. Word has length 143 [2024-11-28 02:15:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:09,230 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 837 transitions. [2024-11-28 02:15:09,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:15:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 837 transitions. [2024-11-28 02:15:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:15:09,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:09,232 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:09,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (17)] Forceful destruction successful, exit code 0 [2024-11-28 02:15:09,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:09,433 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:09,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:09,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1262390164, now seen corresponding path program 1 times [2024-11-28 02:15:09,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:15:09,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898518066] [2024-11-28 02:15:09,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:09,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:15:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:15:09,435 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:09,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (18)] Waiting until timeout for monitored process [2024-11-28 02:15:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:09,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:15:09,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:09,852 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 02:15:09,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-28 02:15:09,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:09,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2024-11-28 02:15:10,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:10,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 15 [2024-11-28 02:15:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:15:10,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:15:10,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898518066] [2024-11-28 02:15:10,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898518066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:10,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:10,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:15:10,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029407947] [2024-11-28 02:15:10,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:10,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:15:10,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:15:10,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:15:10,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:15:10,241 INFO L87 Difference]: Start difference. First operand 600 states and 837 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:14,499 INFO L93 Difference]: Finished difference Result 1816 states and 2505 transitions. [2024-11-28 02:15:14,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:15:14,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:15:14,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:14,506 INFO L225 Difference]: With dead ends: 1816 [2024-11-28 02:15:14,506 INFO L226 Difference]: Without dead ends: 1219 [2024-11-28 02:15:14,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:15:14,508 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 300 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:14,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1149 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 02:15:14,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-28 02:15:14,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1134. [2024-11-28 02:15:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 984 states have (on average 1.33130081300813) internal successors, (1310), 994 states have internal predecessors, (1310), 127 states have call successors, (127), 22 states have call predecessors, (127), 22 states have return successors, (127), 117 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-28 02:15:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1564 transitions. [2024-11-28 02:15:14,658 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1564 transitions. Word has length 144 [2024-11-28 02:15:14,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:14,659 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1564 transitions. [2024-11-28 02:15:14,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1564 transitions. [2024-11-28 02:15:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:15:14,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:14,662 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:14,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (18)] Ended with exit code 0 [2024-11-28 02:15:14,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:14,863 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:14,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash -582331794, now seen corresponding path program 1 times [2024-11-28 02:15:14,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:15:14,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590163512] [2024-11-28 02:15:14,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:14,864 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 02:15:14,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:15:14,866 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:14,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (19)] Waiting until timeout for monitored process [2024-11-28 02:15:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:15,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:15:15,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:15,376 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 02:15:15,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:15,443 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 31 [2024-11-28 02:15:15,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:15,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 58 [2024-11-28 02:15:15,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:15,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 18 [2024-11-28 02:15:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:15:15,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:15:15,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:15,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590163512] [2024-11-28 02:15:15,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590163512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:15,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:15,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:15:15,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100828202] [2024-11-28 02:15:15,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:15,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:15:15,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:15:15,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:15:15,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:15:15,834 INFO L87 Difference]: Start difference. First operand 1134 states and 1564 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:20,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:20,238 INFO L93 Difference]: Finished difference Result 2066 states and 2834 transitions. [2024-11-28 02:15:20,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:15:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:15:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:20,244 INFO L225 Difference]: With dead ends: 2066 [2024-11-28 02:15:20,244 INFO L226 Difference]: Without dead ends: 935 [2024-11-28 02:15:20,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:15:20,246 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 174 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:20,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 790 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:15:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-28 02:15:20,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2024-11-28 02:15:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 799 states have (on average 1.3066332916145182) internal successors, (1044), 807 states have internal predecessors, (1044), 109 states have call successors, (109), 24 states have call predecessors, (109), 24 states have return successors, (109), 101 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-28 02:15:20,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1262 transitions. [2024-11-28 02:15:20,382 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1262 transitions. Word has length 144 [2024-11-28 02:15:20,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:20,382 INFO L471 AbstractCegarLoop]: Abstraction has 933 states and 1262 transitions. [2024-11-28 02:15:20,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1262 transitions. [2024-11-28 02:15:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:15:20,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:20,385 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:20,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (19)] Ended with exit code 0 [2024-11-28 02:15:20,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:20,586 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:20,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:20,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1043535446, now seen corresponding path program 1 times [2024-11-28 02:15:20,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:15:20,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250028093] [2024-11-28 02:15:20,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:20,587 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 02:15:20,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:15:20,590 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:20,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (20)] Waiting until timeout for monitored process [2024-11-28 02:15:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:21,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:15:21,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:21,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:15:21,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:21,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-28 02:15:21,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:21,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2024-11-28 02:15:21,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:21,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 16 [2024-11-28 02:15:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:15:21,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:15:21,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:21,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250028093] [2024-11-28 02:15:21,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250028093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:21,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:21,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:15:21,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134317965] [2024-11-28 02:15:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:21,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:15:21,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:15:21,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:15:21,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:15:21,355 INFO L87 Difference]: Start difference. First operand 933 states and 1262 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:25,099 INFO L93 Difference]: Finished difference Result 2375 states and 3210 transitions. [2024-11-28 02:15:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:15:25,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:15:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:25,104 INFO L225 Difference]: With dead ends: 2375 [2024-11-28 02:15:25,104 INFO L226 Difference]: Without dead ends: 1445 [2024-11-28 02:15:25,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:15:25,106 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 251 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:25,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 641 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 02:15:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-28 02:15:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1368. [2024-11-28 02:15:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1176 states have (on average 1.3095238095238095) internal successors, (1540), 1191 states have internal predecessors, (1540), 157 states have call successors, (157), 34 states have call predecessors, (157), 34 states have return successors, (157), 142 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-28 02:15:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1854 transitions. [2024-11-28 02:15:25,302 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1854 transitions. Word has length 144 [2024-11-28 02:15:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:25,303 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1854 transitions. [2024-11-28 02:15:25,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1854 transitions. [2024-11-28 02:15:25,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:15:25,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:25,306 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:25,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (20)] Ended with exit code 0 [2024-11-28 02:15:25,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:25,506 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:25,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -363477076, now seen corresponding path program 1 times [2024-11-28 02:15:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:15:25,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507286353] [2024-11-28 02:15:25,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:25,507 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 02:15:25,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:15:25,509 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:25,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (21)] Waiting until timeout for monitored process [2024-11-28 02:15:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:25,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:15:25,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:25,925 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 02:15:25,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-28 02:15:25,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:25,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2024-11-28 02:15:26,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:26,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 15 [2024-11-28 02:15:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:15:26,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:15:26,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:26,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507286353] [2024-11-28 02:15:26,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507286353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:26,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:26,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:15:26,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767884409] [2024-11-28 02:15:26,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:26,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:15:26,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:15:26,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:15:26,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:15:26,370 INFO L87 Difference]: Start difference. First operand 1368 states and 1854 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:31,741 INFO L93 Difference]: Finished difference Result 2926 states and 3951 transitions. [2024-11-28 02:15:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:15:31,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:15:31,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:31,747 INFO L225 Difference]: With dead ends: 2926 [2024-11-28 02:15:31,747 INFO L226 Difference]: Without dead ends: 1561 [2024-11-28 02:15:31,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:15:31,750 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 206 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:31,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1690 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 02:15:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-11-28 02:15:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1374. [2024-11-28 02:15:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1182 states have (on average 1.3079526226734348) internal successors, (1546), 1197 states have internal predecessors, (1546), 157 states have call successors, (157), 34 states have call predecessors, (157), 34 states have return successors, (157), 142 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-28 02:15:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1860 transitions. [2024-11-28 02:15:31,957 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1860 transitions. Word has length 144 [2024-11-28 02:15:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:31,957 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1860 transitions. [2024-11-28 02:15:31,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1860 transitions. [2024-11-28 02:15:31,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:15:31,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:31,960 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:31,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (21)] Ended with exit code 0 [2024-11-28 02:15:32,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:32,161 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:32,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:32,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1488362285, now seen corresponding path program 1 times [2024-11-28 02:15:32,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:15:32,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42099743] [2024-11-28 02:15:32,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:32,162 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 02:15:32,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:15:32,164 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:15:32,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (22)] Waiting until timeout for monitored process [2024-11-28 02:15:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:32,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:15:32,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:32,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:15:32,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:32,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 32 [2024-11-28 02:15:33,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:33,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 32 [2024-11-28 02:15:33,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:33,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 68 [2024-11-28 02:15:33,558 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:15:33,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 78 treesize of output 28 [2024-11-28 02:15:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:15:33,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:15:33,787 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:33,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42099743] [2024-11-28 02:15:33,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42099743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:33,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:33,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:15:33,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008399346] [2024-11-28 02:15:33,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:33,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:15:33,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:15:33,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:15:33,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:15:33,789 INFO L87 Difference]: Start difference. First operand 1374 states and 1860 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:15:38,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:15:44,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:15:49,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:15:53,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:02,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:06,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:07,113 INFO L93 Difference]: Finished difference Result 2846 states and 3856 transitions. [2024-11-28 02:16:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:16:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:16:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:07,123 INFO L225 Difference]: With dead ends: 2846 [2024-11-28 02:16:07,123 INFO L226 Difference]: Without dead ends: 1475 [2024-11-28 02:16:07,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:16:07,126 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 119 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:07,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 714 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 527 Invalid, 6 Unknown, 0 Unchecked, 32.7s Time] [2024-11-28 02:16:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2024-11-28 02:16:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1376. [2024-11-28 02:16:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1184 states have (on average 1.3091216216216217) internal successors, (1550), 1199 states have internal predecessors, (1550), 157 states have call successors, (157), 34 states have call predecessors, (157), 34 states have return successors, (157), 142 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-28 02:16:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1864 transitions. [2024-11-28 02:16:07,327 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1864 transitions. Word has length 144 [2024-11-28 02:16:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:07,328 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 1864 transitions. [2024-11-28 02:16:07,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1864 transitions. [2024-11-28 02:16:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:16:07,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:07,331 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:07,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (22)] Ended with exit code 0 [2024-11-28 02:16:07,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:07,532 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:07,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1218257109, now seen corresponding path program 1 times [2024-11-28 02:16:07,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:07,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666813840] [2024-11-28 02:16:07,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:07,533 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 02:16:07,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:16:07,536 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:07,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (23)] Waiting until timeout for monitored process [2024-11-28 02:16:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:08,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:16:08,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:08,071 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 02:16:08,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:08,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 32 [2024-11-28 02:16:08,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:08,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 32 [2024-11-28 02:16:08,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:08,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 52 [2024-11-28 02:16:09,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:09,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 21 [2024-11-28 02:16:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:16:09,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:09,268 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:09,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666813840] [2024-11-28 02:16:09,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666813840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:09,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:09,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:16:09,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624618549] [2024-11-28 02:16:09,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:09,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:16:09,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:09,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:16:09,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:16:09,270 INFO L87 Difference]: Start difference. First operand 1376 states and 1864 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:13,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:19,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:24,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:28,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:37,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:41,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:41,612 INFO L93 Difference]: Finished difference Result 2859 states and 3874 transitions. [2024-11-28 02:16:41,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:16:41,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:16:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:41,621 INFO L225 Difference]: With dead ends: 2859 [2024-11-28 02:16:41,622 INFO L226 Difference]: Without dead ends: 1486 [2024-11-28 02:16:41,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:16:41,625 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 119 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:41,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 688 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 525 Invalid, 6 Unknown, 0 Unchecked, 31.8s Time] [2024-11-28 02:16:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2024-11-28 02:16:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1376. [2024-11-28 02:16:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1184 states have (on average 1.3091216216216217) internal successors, (1550), 1199 states have internal predecessors, (1550), 157 states have call successors, (157), 34 states have call predecessors, (157), 34 states have return successors, (157), 142 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-28 02:16:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1864 transitions. [2024-11-28 02:16:41,751 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1864 transitions. Word has length 144 [2024-11-28 02:16:41,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:41,752 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 1864 transitions. [2024-11-28 02:16:41,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1864 transitions. [2024-11-28 02:16:41,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:16:41,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:41,754 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:41,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (23)] Forceful destruction successful, exit code 0 [2024-11-28 02:16:41,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:41,955 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:41,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:41,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1250390659, now seen corresponding path program 1 times [2024-11-28 02:16:41,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:41,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526620799] [2024-11-28 02:16:41,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:41,956 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 02:16:41,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:16:41,957 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:41,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (24)] Waiting until timeout for monitored process [2024-11-28 02:16:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:42,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:16:42,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:42,331 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 02:16:42,345 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 17 treesize of output 17 [2024-11-28 02:16:42,367 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:42,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2024-11-28 02:16:42,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:42,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2024-11-28 02:16:42,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:42,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2024-11-28 02:16:42,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:42,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 15 [2024-11-28 02:16:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:16:42,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:42,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:42,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526620799] [2024-11-28 02:16:42,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526620799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:42,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:42,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:16:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146578870] [2024-11-28 02:16:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:42,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:16:42,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:42,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:16:42,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:16:42,577 INFO L87 Difference]: Start difference. First operand 1376 states and 1864 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:46,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:46,953 INFO L93 Difference]: Finished difference Result 3665 states and 4948 transitions. [2024-11-28 02:16:46,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:16:46,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:16:46,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:46,964 INFO L225 Difference]: With dead ends: 3665 [2024-11-28 02:16:46,964 INFO L226 Difference]: Without dead ends: 2292 [2024-11-28 02:16:46,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:16:46,971 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 164 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:46,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1240 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 02:16:46,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2024-11-28 02:16:47,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2185. [2024-11-28 02:16:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 1969 states have (on average 1.3285931945149823) internal successors, (2616), 1996 states have internal predecessors, (2616), 169 states have call successors, (169), 46 states have call predecessors, (169), 46 states have return successors, (169), 142 states have call predecessors, (169), 169 states have call successors, (169) [2024-11-28 02:16:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 2954 transitions. [2024-11-28 02:16:47,211 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 2954 transitions. Word has length 144 [2024-11-28 02:16:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:47,212 INFO L471 AbstractCegarLoop]: Abstraction has 2185 states and 2954 transitions. [2024-11-28 02:16:47,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 2954 transitions. [2024-11-28 02:16:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:16:47,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:47,216 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:47,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (24)] Ended with exit code 0 [2024-11-28 02:16:47,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:47,417 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:47,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:47,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1508556097, now seen corresponding path program 1 times [2024-11-28 02:16:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:47,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75559527] [2024-11-28 02:16:47,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:47,418 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 02:16:47,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:16:47,420 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:47,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (25)] Waiting until timeout for monitored process [2024-11-28 02:16:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:47,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 02:16:47,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:47,909 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 02:16:47,986 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 02:16:48,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 02:16:48,088 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 02:16:48,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 02:16:48,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:48,324 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 02:16:48,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:48,489 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 02:16:48,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:48,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 02:16:48,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:48,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 02:16:49,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:49,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 65 [2024-11-28 02:16:49,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:49,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 65 [2024-11-28 02:16:49,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:49,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 65 [2024-11-28 02:16:50,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:50,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 76 [2024-11-28 02:16:50,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:50,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 32 [2024-11-28 02:16:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 404 proven. 42 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-28 02:16:50,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:16:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:16:50,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:50,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75559527] [2024-11-28 02:16:50,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75559527] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:16:50,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:16:50,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-28 02:16:50,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695403579] [2024-11-28 02:16:50,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:50,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:16:50,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:50,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:16:50,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:16:50,785 INFO L87 Difference]: Start difference. First operand 2185 states and 2954 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:53,229 INFO L93 Difference]: Finished difference Result 4396 states and 5924 transitions. [2024-11-28 02:16:53,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:16:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:16:53,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:53,240 INFO L225 Difference]: With dead ends: 4396 [2024-11-28 02:16:53,240 INFO L226 Difference]: Without dead ends: 2214 [2024-11-28 02:16:53,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:16:53,244 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 142 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:53,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 376 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 02:16:53,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-28 02:16:53,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1750. [2024-11-28 02:16:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1540 states have (on average 1.3194805194805195) internal successors, (2032), 1561 states have internal predecessors, (2032), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 142 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-28 02:16:53,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2358 transitions. [2024-11-28 02:16:53,418 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2358 transitions. Word has length 144 [2024-11-28 02:16:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:53,418 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 2358 transitions. [2024-11-28 02:16:53,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2358 transitions. [2024-11-28 02:16:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:16:53,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:53,421 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:53,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (25)] Ended with exit code 0 [2024-11-28 02:16:53,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:53,622 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:53,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:53,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1116377153, now seen corresponding path program 1 times [2024-11-28 02:16:53,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:53,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322893459] [2024-11-28 02:16:53,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:53,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:16:53,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:16:53,628 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:53,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (26)] Waiting until timeout for monitored process [2024-11-28 02:16:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:54,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:16:54,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:54,103 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 02:16:54,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:54,164 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 32 treesize of output 23 [2024-11-28 02:16:54,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:54,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-28 02:16:54,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:54,205 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 35 treesize of output 11 [2024-11-28 02:16:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:16:54,233 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:54,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:54,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322893459] [2024-11-28 02:16:54,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322893459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:54,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:54,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:16:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827674043] [2024-11-28 02:16:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:54,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:16:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:54,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:16:54,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:54,235 INFO L87 Difference]: Start difference. First operand 1750 states and 2358 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:57,814 INFO L93 Difference]: Finished difference Result 3670 states and 4948 transitions. [2024-11-28 02:16:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:16:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 02:16:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:57,823 INFO L225 Difference]: With dead ends: 3670 [2024-11-28 02:16:57,823 INFO L226 Difference]: Without dead ends: 1934 [2024-11-28 02:16:57,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:16:57,825 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 92 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:57,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 585 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 02:16:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-28 02:16:57,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1673. [2024-11-28 02:16:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1465 states have (on average 1.3146757679180887) internal successors, (1926), 1484 states have internal predecessors, (1926), 161 states have call successors, (161), 46 states have call predecessors, (161), 46 states have return successors, (161), 142 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-28 02:16:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2248 transitions. [2024-11-28 02:16:57,969 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2248 transitions. Word has length 144 [2024-11-28 02:16:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:57,970 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2248 transitions. [2024-11-28 02:16:57,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:16:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2248 transitions. [2024-11-28 02:16:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 02:16:57,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:57,973 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:57,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (26)] Forceful destruction successful, exit code 0 [2024-11-28 02:16:58,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:58,173 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:58,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1647592217, now seen corresponding path program 1 times [2024-11-28 02:16:58,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:58,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231587124] [2024-11-28 02:16:58,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:58,175 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 02:16:58,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:16:58,176 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:16:58,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (27)] Waiting until timeout for monitored process [2024-11-28 02:17:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:12,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 02:17:12,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:12,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:17:13,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-28 02:17:13,580 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 80 treesize of output 34 [2024-11-28 02:17:13,805 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 80 treesize of output 34 [2024-11-28 02:17:14,959 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 0 case distinctions, treesize of input 138 treesize of output 65 [2024-11-28 02:17:16,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:16,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 98 [2024-11-28 02:17:17,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:17,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 98 [2024-11-28 02:17:17,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:17,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 98 [2024-11-28 02:17:18,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:18,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 98 [2024-11-28 02:17:19,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:19,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 108 [2024-11-28 02:17:21,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:21,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 286 treesize of output 135 [2024-11-28 02:17:30,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:30,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 197 treesize of output 100 [2024-11-28 02:17:31,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:31,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 199 treesize of output 111 [2024-11-28 02:17:43,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:43,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 276 treesize of output 96 [2024-11-28 02:17:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 323 proven. 33 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-28 02:17:46,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:18:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:18:05,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:18:05,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231587124] [2024-11-28 02:18:05,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231587124] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:18:05,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:18:05,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22] total 26 [2024-11-28 02:18:05,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441201132] [2024-11-28 02:18:05,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:05,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:18:05,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:18:05,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:18:05,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2024-11-28 02:18:05,406 INFO L87 Difference]: Start difference. First operand 1673 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:18:07,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:18:43,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:18:47,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:18:51,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:18:55,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:18:58,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:19:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:19:25,631 INFO L93 Difference]: Finished difference Result 3616 states and 4868 transitions. [2024-11-28 02:19:25,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:19:25,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-28 02:19:25,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:19:25,643 INFO L225 Difference]: With dead ends: 3616 [2024-11-28 02:19:25,643 INFO L226 Difference]: Without dead ends: 1946 [2024-11-28 02:19:25,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:19:25,646 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 144 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:19:25,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 445 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 241 Invalid, 3 Unknown, 0 Unchecked, 78.2s Time] [2024-11-28 02:19:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2024-11-28 02:19:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1717. [2024-11-28 02:19:25,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1509 states have (on average 1.3240556660039762) internal successors, (1998), 1528 states have internal predecessors, (1998), 161 states have call successors, (161), 46 states have call predecessors, (161), 46 states have return successors, (161), 142 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-28 02:19:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2320 transitions. [2024-11-28 02:19:25,835 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2320 transitions. Word has length 145 [2024-11-28 02:19:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:19:25,835 INFO L471 AbstractCegarLoop]: Abstraction has 1717 states and 2320 transitions. [2024-11-28 02:19:25,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:19:25,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2320 transitions. [2024-11-28 02:19:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 02:19:25,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:19:25,838 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:25,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (27)] Ended with exit code 0 [2024-11-28 02:19:26,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:19:26,039 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:19:26,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 140872167, now seen corresponding path program 1 times [2024-11-28 02:19:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:19:26,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861682617] [2024-11-28 02:19:26,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:19:26,040 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 02:19:26,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:19:26,041 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:19:26,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (28)] Waiting until timeout for monitored process [2024-11-28 02:19:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:19:42,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 02:19:42,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:19:43,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:19:43,457 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 80 treesize of output 34 [2024-11-28 02:19:43,722 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 80 treesize of output 34 [2024-11-28 02:19:43,982 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 80 treesize of output 34 [2024-11-28 02:19:45,287 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 0 case distinctions, treesize of input 138 treesize of output 65 [2024-11-28 02:19:46,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:19:46,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 108 [2024-11-28 02:19:48,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:19:48,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 208 treesize of output 111 [2024-11-28 02:19:49,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:19:49,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 208 treesize of output 111 [2024-11-28 02:19:50,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:19:50,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 203 treesize of output 121 [2024-11-28 02:19:51,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:19:51,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 213 treesize of output 134 [2024-11-28 02:19:54,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:19:54,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 307 treesize of output 162 [2024-11-28 02:20:03,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:20:03,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 307 treesize of output 162 [2024-11-28 02:20:07,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:20:07,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 309 treesize of output 173 [2024-11-28 02:20:20,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:20:20,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 386 treesize of output 140 [2024-11-28 02:20:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 403 proven. 33 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 02:20:23,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:20:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:20:42,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:20:42,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861682617] [2024-11-28 02:20:42,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861682617] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:20:42,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:20:42,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 28 [2024-11-28 02:20:42,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374128072] [2024-11-28 02:20:42,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:42,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:20:42,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:20:42,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:20:42,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:20:42,945 INFO L87 Difference]: Start difference. First operand 1717 states and 2320 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:21:21,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:23,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:26,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:27,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:32,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:22:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:01,358 INFO L93 Difference]: Finished difference Result 3421 states and 4624 transitions. [2024-11-28 02:22:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:01,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-28 02:22:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:01,375 INFO L225 Difference]: With dead ends: 3421 [2024-11-28 02:22:01,375 INFO L226 Difference]: Without dead ends: 1707 [2024-11-28 02:22:01,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-11-28 02:22:01,379 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 140 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:01,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 451 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 75.7s Time] [2024-11-28 02:22:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-28 02:22:01,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1672. [2024-11-28 02:22:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1464 states have (on average 1.3237704918032787) internal successors, (1938), 1483 states have internal predecessors, (1938), 161 states have call successors, (161), 46 states have call predecessors, (161), 46 states have return successors, (161), 142 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-28 02:22:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2260 transitions. [2024-11-28 02:22:01,524 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2260 transitions. Word has length 145 [2024-11-28 02:22:01,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:01,525 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 2260 transitions. [2024-11-28 02:22:01,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:22:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2260 transitions. [2024-11-28 02:22:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 02:22:01,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:01,526 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:01,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (28)] Ended with exit code 0 [2024-11-28 02:22:01,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:22:01,727 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:01,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:01,727 INFO L85 PathProgramCache]: Analyzing trace with hash -58045308, now seen corresponding path program 1 times [2024-11-28 02:22:01,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:01,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988165265] [2024-11-28 02:22:01,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:01,728 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 02:22:01,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:22:01,730 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:22:01,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (29)] Waiting until timeout for monitored process [2024-11-28 02:22:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:02,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:22:02,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:02,258 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 02:22:02,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-28 02:22:02,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:02,399 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 34 treesize of output 10 [2024-11-28 02:22:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:22:02,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:02,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988165265] [2024-11-28 02:22:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988165265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:02,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:02,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:22:02,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447289610] [2024-11-28 02:22:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:02,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:22:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:02,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:22:02,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:22:02,501 INFO L87 Difference]: Start difference. First operand 1672 states and 2260 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:22:07,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:07,073 INFO L93 Difference]: Finished difference Result 3471 states and 4681 transitions. [2024-11-28 02:22:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:22:07,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-28 02:22:07,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:07,090 INFO L225 Difference]: With dead ends: 3471 [2024-11-28 02:22:07,090 INFO L226 Difference]: Without dead ends: 1802 [2024-11-28 02:22:07,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:22:07,093 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 98 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:07,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1440 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:22:07,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-28 02:22:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1678. [2024-11-28 02:22:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1678 states, 1470 states have (on average 1.3224489795918368) internal successors, (1944), 1489 states have internal predecessors, (1944), 161 states have call successors, (161), 46 states have call predecessors, (161), 46 states have return successors, (161), 142 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-28 02:22:07,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2266 transitions. [2024-11-28 02:22:07,322 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2266 transitions. Word has length 145 [2024-11-28 02:22:07,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:07,322 INFO L471 AbstractCegarLoop]: Abstraction has 1678 states and 2266 transitions. [2024-11-28 02:22:07,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:22:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2266 transitions. [2024-11-28 02:22:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 02:22:07,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:07,325 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:07,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (29)] Ended with exit code 0 [2024-11-28 02:22:07,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:22:07,526 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:07,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:07,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1159361783, now seen corresponding path program 1 times [2024-11-28 02:22:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:22:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396328423] [2024-11-28 02:22:07,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:07,527 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 02:22:07,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:22:07,529 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 02:22:07,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4deadf-74c6-4a3d-8363-017f2e7b3d2a/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 (30)] Waiting until timeout for monitored process [2024-11-28 02:22:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:08,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 02:22:08,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:08,274 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 02:22:08,704 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 75 treesize of output 44 [2024-11-28 02:22:09,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:09,145 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 90 treesize of output 47 [2024-11-28 02:22:09,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:09,501 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 90 treesize of output 47 [2024-11-28 02:22:09,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:09,856 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 85 treesize of output 57 [2024-11-28 02:22:10,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:10,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 60 [2024-11-28 02:22:10,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:10,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 60 [2024-11-28 02:22:11,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:11,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 60 [2024-11-28 02:22:11,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:11,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 60 [2024-11-28 02:22:11,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:22:11,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 42 [2024-11-28 02:22:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 02:22:11,491 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:11,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:22:11,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396328423] [2024-11-28 02:22:11,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396328423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:11,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:11,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:22:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545977389] [2024-11-28 02:22:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:11,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:22:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:22:11,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:22:11,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:22:11,493 INFO L87 Difference]: Start difference. First operand 1678 states and 2266 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17)