./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/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_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:28:16,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:28:16,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:28:16,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:28:16,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:28:16,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:28:16,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:28:16,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:28:16,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:28:16,388 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:28:16,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:28:16,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:28:16,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:28:16,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:28:16,389 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:28:16,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:28:16,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:28:16,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:28:16,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:28:16,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:28:16,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:28:16,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:28:16,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:28:16,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:28:16,394 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:28:16,394 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:28:16,394 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:28:16,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:28:16,395 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:28:16,395 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:28:16,395 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:28:16,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:16,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:16,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:16,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:16,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:28:16,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:16,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:16,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:16,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:16,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:28:16,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:28:16,398 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:28:16,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:28:16,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:28:16,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:28:16,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:28:16,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:28:16,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:28:16,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:28:16,399 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_55c62e73-76d8-41b5-abb0-6e9becff5fae/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 ! overflow) ) 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 -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2024-11-27 23:28:16,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:28:16,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:28:16,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:28:16,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:28:16,813 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:28:16,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2024-11-27 23:28:20,206 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/1a2c664fb/489a94157e454060bd4b9079072f4fcc/FLAG3778526bb [2024-11-27 23:28:20,524 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:28:20,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2024-11-27 23:28:20,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/1a2c664fb/489a94157e454060bd4b9079072f4fcc/FLAG3778526bb [2024-11-27 23:28:20,798 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/1a2c664fb/489a94157e454060bd4b9079072f4fcc [2024-11-27 23:28:20,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:28:20,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:28:20,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:20,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:28:20,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:28:20,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:20" (1/1) ... [2024-11-27 23:28:20,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648eeb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:20, skipping insertion in model container [2024-11-27 23:28:20,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:20" (1/1) ... [2024-11-27 23:28:20,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:28:21,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:21,156 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:28:21,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:21,224 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:28:21,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21 WrapperNode [2024-11-27 23:28:21,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:21,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:21,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:28:21,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:28:21,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,302 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2024-11-27 23:28:21,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:21,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:28:21,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:28:21,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:28:21,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,339 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:28:21,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,345 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:28:21,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:28:21,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:28:21,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:28:21,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (1/1) ... [2024-11-27 23:28:21,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:21,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:21,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:28:21,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:28:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:28:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:28:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-27 23:28:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-27 23:28:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:28:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:28:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:28:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:28:21,551 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:28:21,554 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:28:22,197 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-27 23:28:22,198 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:28:22,224 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:28:22,227 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:28:22,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:22 BoogieIcfgContainer [2024-11-27 23:28:22,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:28:22,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:28:22,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:28:22,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:28:22,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:28:20" (1/3) ... [2024-11-27 23:28:22,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5341d100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:22, skipping insertion in model container [2024-11-27 23:28:22,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:21" (2/3) ... [2024-11-27 23:28:22,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5341d100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:22, skipping insertion in model container [2024-11-27 23:28:22,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:22" (3/3) ... [2024-11-27 23:28:22,246 INFO L128 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2024-11-27 23:28:22,266 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:28:22,271 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG soft_float_5.c.cil.c that has 3 procedures, 121 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-27 23:28:22,344 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:28:22,359 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;@1be91612, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:28:22,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-27 23:28:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 114 states have internal predecessors, (148), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:28:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 23:28:22,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:22,373 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:22,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:22,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1598399240, now seen corresponding path program 1 times [2024-11-27 23:28:22,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845709218] [2024-11-27 23:28:22,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:22,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845709218] [2024-11-27 23:28:22,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845709218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:22,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:22,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:28:22,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125753226] [2024-11-27 23:28:22,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:22,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:22,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:22,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:22,769 INFO L87 Difference]: Start difference. First operand has 121 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 114 states have internal predecessors, (148), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:23,018 INFO L93 Difference]: Finished difference Result 289 states and 403 transitions. [2024-11-27 23:28:23,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 23:28:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:23,035 INFO L225 Difference]: With dead ends: 289 [2024-11-27 23:28:23,035 INFO L226 Difference]: Without dead ends: 151 [2024-11-27 23:28:23,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:23,046 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 85 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:23,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 387 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-27 23:28:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2024-11-27 23:28:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 113 states have (on average 1.5221238938053097) internal successors, (172), 132 states have internal predecessors, (172), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 180 transitions. [2024-11-27 23:28:23,122 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 180 transitions. Word has length 8 [2024-11-27 23:28:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:23,123 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 180 transitions. [2024-11-27 23:28:23,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 180 transitions. [2024-11-27 23:28:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 23:28:23,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:23,127 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:23,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:28:23,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:23,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:23,129 INFO L85 PathProgramCache]: Analyzing trace with hash 776388493, now seen corresponding path program 1 times [2024-11-27 23:28:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:23,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216784813] [2024-11-27 23:28:23,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:23,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:23,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:23,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:23,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216784813] [2024-11-27 23:28:23,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216784813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:23,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:23,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:28:23,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160899391] [2024-11-27 23:28:23,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:23,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:28:23,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:23,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:28:23,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:23,252 INFO L87 Difference]: Start difference. First operand 139 states and 180 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:23,352 INFO L93 Difference]: Finished difference Result 139 states and 180 transitions. [2024-11-27 23:28:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:28:23,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 23:28:23,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:23,354 INFO L225 Difference]: With dead ends: 139 [2024-11-27 23:28:23,354 INFO L226 Difference]: Without dead ends: 138 [2024-11-27 23:28:23,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:23,355 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:23,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 200 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:23,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-27 23:28:23,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-27 23:28:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 113 states have (on average 1.5044247787610618) internal successors, (170), 131 states have internal predecessors, (170), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2024-11-27 23:28:23,369 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 12 [2024-11-27 23:28:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:23,370 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2024-11-27 23:28:23,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2024-11-27 23:28:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:28:23,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:23,371 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:23,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:28:23,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:23,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1895784349, now seen corresponding path program 1 times [2024-11-27 23:28:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:23,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766113980] [2024-11-27 23:28:23,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:23,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:23,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:23,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766113980] [2024-11-27 23:28:23,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766113980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:23,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360666160] [2024-11-27 23:28:23,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:23,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:23,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:23,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:23,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:28:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:23,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:28:23,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:23,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:28:23,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360666160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:23,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:28:23,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 23:28:23,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485646726] [2024-11-27 23:28:23,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:23,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:23,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:23,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:23,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:23,665 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:23,797 INFO L93 Difference]: Finished difference Result 166 states and 224 transitions. [2024-11-27 23:28:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-27 23:28:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:23,800 INFO L225 Difference]: With dead ends: 166 [2024-11-27 23:28:23,800 INFO L226 Difference]: Without dead ends: 164 [2024-11-27 23:28:23,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:23,801 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 31 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:23,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 205 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-27 23:28:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 146. [2024-11-27 23:28:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.487603305785124) internal successors, (180), 139 states have internal predecessors, (180), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:23,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 188 transitions. [2024-11-27 23:28:23,835 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 188 transitions. Word has length 13 [2024-11-27 23:28:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:23,836 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 188 transitions. [2024-11-27 23:28:23,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:23,836 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 188 transitions. [2024-11-27 23:28:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:28:23,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:23,837 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:23,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:28:24,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:24,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:24,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:24,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1701760438, now seen corresponding path program 1 times [2024-11-27 23:28:24,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:24,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356078362] [2024-11-27 23:28:24,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:24,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:24,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:24,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356078362] [2024-11-27 23:28:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356078362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:24,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390015399] [2024-11-27 23:28:24,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:24,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:24,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:24,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:24,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:28:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:24,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:28:24,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:24,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:28:24,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390015399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:24,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:28:24,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-27 23:28:24,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944437519] [2024-11-27 23:28:24,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:24,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:28:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:24,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:28:24,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:24,323 INFO L87 Difference]: Start difference. First operand 146 states and 188 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:24,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:24,412 INFO L93 Difference]: Finished difference Result 151 states and 195 transitions. [2024-11-27 23:28:24,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:28:24,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-27 23:28:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:24,414 INFO L225 Difference]: With dead ends: 151 [2024-11-27 23:28:24,415 INFO L226 Difference]: Without dead ends: 150 [2024-11-27 23:28:24,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:24,419 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 16 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:24,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 191 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-27 23:28:24,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2024-11-27 23:28:24,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.4836065573770492) internal successors, (181), 140 states have internal predecessors, (181), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 189 transitions. [2024-11-27 23:28:24,449 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 189 transitions. Word has length 13 [2024-11-27 23:28:24,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:24,450 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 189 transitions. [2024-11-27 23:28:24,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 189 transitions. [2024-11-27 23:28:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 23:28:24,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:24,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:24,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:28:24,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:24,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:24,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1368910232, now seen corresponding path program 1 times [2024-11-27 23:28:24,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:24,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192754067] [2024-11-27 23:28:24,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:24,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:24,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:24,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192754067] [2024-11-27 23:28:24,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192754067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:24,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:24,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:28:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30357628] [2024-11-27 23:28:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:24,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:28:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:24,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:28:24,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:24,702 INFO L87 Difference]: Start difference. First operand 147 states and 189 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:24,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:24,820 INFO L93 Difference]: Finished difference Result 301 states and 392 transitions. [2024-11-27 23:28:24,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:28:24,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 23:28:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:24,823 INFO L225 Difference]: With dead ends: 301 [2024-11-27 23:28:24,823 INFO L226 Difference]: Without dead ends: 157 [2024-11-27 23:28:24,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:24,825 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 16 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:24,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 201 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:24,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-27 23:28:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 149. [2024-11-27 23:28:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 124 states have (on average 1.4596774193548387) internal successors, (181), 142 states have internal predecessors, (181), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 189 transitions. [2024-11-27 23:28:24,841 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 189 transitions. Word has length 14 [2024-11-27 23:28:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:24,842 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 189 transitions. [2024-11-27 23:28:24,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:24,842 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 189 transitions. [2024-11-27 23:28:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 23:28:24,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:24,843 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:24,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:28:24,844 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:24,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1360227414, now seen corresponding path program 1 times [2024-11-27 23:28:24,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:24,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304656707] [2024-11-27 23:28:24,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:24,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:28:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304656707] [2024-11-27 23:28:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304656707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:24,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:28:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135619127] [2024-11-27 23:28:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:24,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:28:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:24,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:28:24,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:24,896 INFO L87 Difference]: Start difference. First operand 149 states and 189 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:24,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:24,964 INFO L93 Difference]: Finished difference Result 149 states and 189 transitions. [2024-11-27 23:28:24,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:28:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 23:28:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:24,966 INFO L225 Difference]: With dead ends: 149 [2024-11-27 23:28:24,966 INFO L226 Difference]: Without dead ends: 148 [2024-11-27 23:28:24,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:24,968 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 2 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:24,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-27 23:28:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-27 23:28:24,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 122 states have (on average 1.4508196721311475) internal successors, (177), 139 states have internal predecessors, (177), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:24,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2024-11-27 23:28:24,982 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 14 [2024-11-27 23:28:24,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:24,982 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2024-11-27 23:28:24,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2024-11-27 23:28:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 23:28:24,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:24,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:24,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:28:24,984 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:24,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:24,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1524520298, now seen corresponding path program 1 times [2024-11-27 23:28:24,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:24,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755458882] [2024-11-27 23:28:24,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:24,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:25,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:25,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755458882] [2024-11-27 23:28:25,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755458882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:25,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:25,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:28:25,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593411059] [2024-11-27 23:28:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:25,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:28:25,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:25,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:28:25,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:25,030 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:25,095 INFO L93 Difference]: Finished difference Result 299 states and 384 transitions. [2024-11-27 23:28:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:28:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-27 23:28:25,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:25,097 INFO L225 Difference]: With dead ends: 299 [2024-11-27 23:28:25,097 INFO L226 Difference]: Without dead ends: 156 [2024-11-27 23:28:25,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:28:25,099 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 7 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:25,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 208 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:28:25,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-27 23:28:25,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 148. [2024-11-27 23:28:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 141 states have internal predecessors, (177), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2024-11-27 23:28:25,113 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 15 [2024-11-27 23:28:25,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:25,114 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2024-11-27 23:28:25,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:25,114 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2024-11-27 23:28:25,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 23:28:25,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:25,115 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:25,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:28:25,116 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:25,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash -780460209, now seen corresponding path program 1 times [2024-11-27 23:28:25,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:25,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946477066] [2024-11-27 23:28:25,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:25,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:25,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946477066] [2024-11-27 23:28:25,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946477066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235137601] [2024-11-27 23:28:25,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:25,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:25,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:25,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:25,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:28:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:25,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:28:25,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:25,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:25,339 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:28:25,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235137601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:25,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:28:25,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 23:28:25,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100161920] [2024-11-27 23:28:25,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:25,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:25,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:25,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:25,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:25,343 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:25,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:25,439 INFO L93 Difference]: Finished difference Result 163 states and 207 transitions. [2024-11-27 23:28:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:25,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-27 23:28:25,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:25,441 INFO L225 Difference]: With dead ends: 163 [2024-11-27 23:28:25,442 INFO L226 Difference]: Without dead ends: 162 [2024-11-27 23:28:25,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:25,443 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 9 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:25,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 289 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:25,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-27 23:28:25,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2024-11-27 23:28:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.4015151515151516) internal successors, (185), 149 states have internal predecessors, (185), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2024-11-27 23:28:25,464 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 15 [2024-11-27 23:28:25,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:25,464 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2024-11-27 23:28:25,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2024-11-27 23:28:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 23:28:25,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:25,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:25,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:28:25,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:25,667 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:25,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1091950779, now seen corresponding path program 1 times [2024-11-27 23:28:25,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:25,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829254097] [2024-11-27 23:28:25,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:25,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:25,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:25,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829254097] [2024-11-27 23:28:25,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829254097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:25,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:25,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:25,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570234969] [2024-11-27 23:28:25,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:25,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:25,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:25,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:25,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:25,745 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:25,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:25,935 INFO L93 Difference]: Finished difference Result 171 states and 207 transitions. [2024-11-27 23:28:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:25,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-27 23:28:25,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:25,937 INFO L225 Difference]: With dead ends: 171 [2024-11-27 23:28:25,938 INFO L226 Difference]: Without dead ends: 169 [2024-11-27 23:28:25,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:25,939 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 89 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:25,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 373 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:25,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-27 23:28:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 159. [2024-11-27 23:28:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 135 states have (on average 1.4) internal successors, (189), 152 states have internal predecessors, (189), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2024-11-27 23:28:25,956 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 197 transitions. Word has length 15 [2024-11-27 23:28:25,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:25,956 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 197 transitions. [2024-11-27 23:28:25,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2024-11-27 23:28:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 23:28:25,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:25,959 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:25,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:28:25,960 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:25,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:25,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1635957531, now seen corresponding path program 1 times [2024-11-27 23:28:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:25,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836268191] [2024-11-27 23:28:25,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:26,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:26,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836268191] [2024-11-27 23:28:26,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836268191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:26,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:26,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:26,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808968695] [2024-11-27 23:28:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:26,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:26,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:26,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:26,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:26,098 INFO L87 Difference]: Start difference. First operand 159 states and 197 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:26,180 INFO L93 Difference]: Finished difference Result 320 states and 396 transitions. [2024-11-27 23:28:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:26,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-27 23:28:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:26,182 INFO L225 Difference]: With dead ends: 320 [2024-11-27 23:28:26,182 INFO L226 Difference]: Without dead ends: 164 [2024-11-27 23:28:26,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:26,184 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 4 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:26,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 311 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-27 23:28:26,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-27 23:28:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 139 states have (on average 1.3884892086330936) internal successors, (193), 156 states have internal predecessors, (193), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2024-11-27 23:28:26,195 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 201 transitions. Word has length 16 [2024-11-27 23:28:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:26,195 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 201 transitions. [2024-11-27 23:28:26,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:28:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 201 transitions. [2024-11-27 23:28:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 23:28:26,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:26,196 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:28:26,197 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:26,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:26,198 INFO L85 PathProgramCache]: Analyzing trace with hash -690100209, now seen corresponding path program 1 times [2024-11-27 23:28:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:26,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728366123] [2024-11-27 23:28:26,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 23:28:26,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:26,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728366123] [2024-11-27 23:28:26,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728366123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:26,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:26,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:26,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495512826] [2024-11-27 23:28:26,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:26,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:26,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:26,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:26,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:26,294 INFO L87 Difference]: Start difference. First operand 164 states and 201 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:26,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:26,477 INFO L93 Difference]: Finished difference Result 223 states and 274 transitions. [2024-11-27 23:28:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:26,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-27 23:28:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:26,480 INFO L225 Difference]: With dead ends: 223 [2024-11-27 23:28:26,480 INFO L226 Difference]: Without dead ends: 219 [2024-11-27 23:28:26,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:26,481 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 135 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:26,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 294 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-27 23:28:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 207. [2024-11-27 23:28:26,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 182 states have (on average 1.3681318681318682) internal successors, (249), 198 states have internal predecessors, (249), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2024-11-27 23:28:26,503 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 23 [2024-11-27 23:28:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:26,504 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2024-11-27 23:28:26,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2024-11-27 23:28:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 23:28:26,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:26,506 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:26,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:28:26,507 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:26,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash -690960367, now seen corresponding path program 1 times [2024-11-27 23:28:26,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:26,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888777842] [2024-11-27 23:28:26,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 23:28:26,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:26,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888777842] [2024-11-27 23:28:26,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888777842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:26,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:26,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272321054] [2024-11-27 23:28:26,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:26,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:26,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:26,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:26,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:26,604 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:26,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:26,760 INFO L93 Difference]: Finished difference Result 221 states and 269 transitions. [2024-11-27 23:28:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:26,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-27 23:28:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:26,762 INFO L225 Difference]: With dead ends: 221 [2024-11-27 23:28:26,762 INFO L226 Difference]: Without dead ends: 219 [2024-11-27 23:28:26,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:26,763 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 135 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:26,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 299 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:26,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-27 23:28:26,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 199. [2024-11-27 23:28:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 174 states have (on average 1.3620689655172413) internal successors, (237), 190 states have internal predecessors, (237), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2024-11-27 23:28:26,784 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 23 [2024-11-27 23:28:26,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:26,784 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2024-11-27 23:28:26,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2024-11-27 23:28:26,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 23:28:26,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:26,786 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:26,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:28:26,786 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:26,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1025887328, now seen corresponding path program 1 times [2024-11-27 23:28:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:26,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264871730] [2024-11-27 23:28:26,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:26,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:26,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:26,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264871730] [2024-11-27 23:28:26,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264871730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:26,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:26,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:26,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375132251] [2024-11-27 23:28:26,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:26,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:26,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:26,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:26,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:26,896 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:28:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:27,001 INFO L93 Difference]: Finished difference Result 350 states and 430 transitions. [2024-11-27 23:28:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:27,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-27 23:28:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:27,003 INFO L225 Difference]: With dead ends: 350 [2024-11-27 23:28:27,003 INFO L226 Difference]: Without dead ends: 178 [2024-11-27 23:28:27,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:27,004 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 34 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:27,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 311 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-27 23:28:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2024-11-27 23:28:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 150 states have (on average 1.3733333333333333) internal successors, (206), 166 states have internal predecessors, (206), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 214 transitions. [2024-11-27 23:28:27,024 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 214 transitions. Word has length 23 [2024-11-27 23:28:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:27,024 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 214 transitions. [2024-11-27 23:28:27,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:28:27,026 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 214 transitions. [2024-11-27 23:28:27,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 23:28:27,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:27,026 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:27,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:28:27,027 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:27,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1123858329, now seen corresponding path program 1 times [2024-11-27 23:28:27,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:27,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222322291] [2024-11-27 23:28:27,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:28:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222322291] [2024-11-27 23:28:27,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222322291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:27,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:27,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611825982] [2024-11-27 23:28:27,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:27,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:27,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:27,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:27,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:27,131 INFO L87 Difference]: Start difference. First operand 175 states and 214 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:28:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:27,258 INFO L93 Difference]: Finished difference Result 338 states and 415 transitions. [2024-11-27 23:28:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:28:27,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-27 23:28:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:27,261 INFO L225 Difference]: With dead ends: 338 [2024-11-27 23:28:27,261 INFO L226 Difference]: Without dead ends: 194 [2024-11-27 23:28:27,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:27,264 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 70 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:27,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 296 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:27,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-27 23:28:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 186. [2024-11-27 23:28:27,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 161 states have (on average 1.360248447204969) internal successors, (219), 177 states have internal predecessors, (219), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2024-11-27 23:28:27,285 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 23 [2024-11-27 23:28:27,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:27,286 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2024-11-27 23:28:27,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:28:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2024-11-27 23:28:27,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 23:28:27,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:27,288 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:27,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:28:27,289 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:27,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash 595965086, now seen corresponding path program 1 times [2024-11-27 23:28:27,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:27,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312578560] [2024-11-27 23:28:27,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:27,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:28:27,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312578560] [2024-11-27 23:28:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312578560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:27,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:27,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:28:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042962759] [2024-11-27 23:28:27,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:27,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:27,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:27,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:27,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:27,364 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:28:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:27,444 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2024-11-27 23:28:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:27,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-27 23:28:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:27,447 INFO L225 Difference]: With dead ends: 190 [2024-11-27 23:28:27,447 INFO L226 Difference]: Without dead ends: 189 [2024-11-27 23:28:27,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:27,448 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 8 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:27,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 190 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-27 23:28:27,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 176. [2024-11-27 23:28:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 151 states have (on average 1.3708609271523178) internal successors, (207), 167 states have internal predecessors, (207), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 215 transitions. [2024-11-27 23:28:27,463 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 215 transitions. Word has length 27 [2024-11-27 23:28:27,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:27,464 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 215 transitions. [2024-11-27 23:28:27,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:28:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 215 transitions. [2024-11-27 23:28:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 23:28:27,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:27,465 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:27,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:28:27,465 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:27,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1535656403, now seen corresponding path program 1 times [2024-11-27 23:28:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526942539] [2024-11-27 23:28:27,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:28:27,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:27,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526942539] [2024-11-27 23:28:27,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526942539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:27,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216003441] [2024-11-27 23:28:27,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:27,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:27,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:27,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:27,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:28:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:27,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:28:27,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:28:27,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:28:28,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216003441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:28,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:28:28,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-27 23:28:28,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552223780] [2024-11-27 23:28:28,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:28,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:28:28,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:28,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:28:28,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:28:28,046 INFO L87 Difference]: Start difference. First operand 176 states and 215 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:28:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:28,546 INFO L93 Difference]: Finished difference Result 620 states and 794 transitions. [2024-11-27 23:28:28,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:28:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-27 23:28:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:28,550 INFO L225 Difference]: With dead ends: 620 [2024-11-27 23:28:28,550 INFO L226 Difference]: Without dead ends: 476 [2024-11-27 23:28:28,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:28:28,552 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 162 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:28,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 753 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:28:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-27 23:28:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 192. [2024-11-27 23:28:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 183 states have internal predecessors, (227), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 235 transitions. [2024-11-27 23:28:28,576 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 235 transitions. Word has length 40 [2024-11-27 23:28:28,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:28,577 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 235 transitions. [2024-11-27 23:28:28,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:28:28,577 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 235 transitions. [2024-11-27 23:28:28,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 23:28:28,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:28,578 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:28,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:28:28,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:28,779 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:28,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:28,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1806126186, now seen corresponding path program 1 times [2024-11-27 23:28:28,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:28,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57650900] [2024-11-27 23:28:28,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:28:28,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:28,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57650900] [2024-11-27 23:28:28,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57650900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:28,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:28,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:28,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555509449] [2024-11-27 23:28:28,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:28,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:28,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:28,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:28,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:28,933 INFO L87 Difference]: Start difference. First operand 192 states and 235 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:29,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:29,101 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2024-11-27 23:28:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:29,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-27 23:28:29,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:29,103 INFO L225 Difference]: With dead ends: 196 [2024-11-27 23:28:29,103 INFO L226 Difference]: Without dead ends: 193 [2024-11-27 23:28:29,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:29,104 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 125 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:29,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 316 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:29,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-27 23:28:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2024-11-27 23:28:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 160 states have (on average 1.34375) internal successors, (215), 173 states have internal predecessors, (215), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 223 transitions. [2024-11-27 23:28:29,123 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 223 transitions. Word has length 45 [2024-11-27 23:28:29,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:29,124 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 223 transitions. [2024-11-27 23:28:29,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 223 transitions. [2024-11-27 23:28:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 23:28:29,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:29,125 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:29,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:28:29,125 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:29,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:29,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1806986344, now seen corresponding path program 1 times [2024-11-27 23:28:29,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:29,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531459649] [2024-11-27 23:28:29,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:29,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:28:29,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:29,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531459649] [2024-11-27 23:28:29,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531459649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:29,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:29,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:29,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260926539] [2024-11-27 23:28:29,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:29,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:29,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:29,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:29,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:29,217 INFO L87 Difference]: Start difference. First operand 182 states and 223 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:29,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:29,367 INFO L93 Difference]: Finished difference Result 190 states and 232 transitions. [2024-11-27 23:28:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:29,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-27 23:28:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:29,369 INFO L225 Difference]: With dead ends: 190 [2024-11-27 23:28:29,369 INFO L226 Difference]: Without dead ends: 188 [2024-11-27 23:28:29,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:29,370 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 134 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:29,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 308 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-27 23:28:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2024-11-27 23:28:29,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 152 states have (on average 1.3421052631578947) internal successors, (204), 163 states have internal predecessors, (204), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2024-11-27 23:28:29,388 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 45 [2024-11-27 23:28:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:29,389 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2024-11-27 23:28:29,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2024-11-27 23:28:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 23:28:29,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:29,390 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:29,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:28:29,391 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:29,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash 507334885, now seen corresponding path program 1 times [2024-11-27 23:28:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:29,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883494217] [2024-11-27 23:28:29,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:29,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 23:28:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:29,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883494217] [2024-11-27 23:28:29,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883494217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:29,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:29,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395096375] [2024-11-27 23:28:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:29,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:29,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:29,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:29,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:29,498 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:29,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:29,615 INFO L93 Difference]: Finished difference Result 326 states and 402 transitions. [2024-11-27 23:28:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:28:29,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-11-27 23:28:29,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:29,617 INFO L225 Difference]: With dead ends: 326 [2024-11-27 23:28:29,618 INFO L226 Difference]: Without dead ends: 195 [2024-11-27 23:28:29,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:29,619 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 10 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:29,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 296 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:29,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-27 23:28:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 168. [2024-11-27 23:28:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 159 states have internal predecessors, (197), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 205 transitions. [2024-11-27 23:28:29,639 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 205 transitions. Word has length 45 [2024-11-27 23:28:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:29,640 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 205 transitions. [2024-11-27 23:28:29,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 205 transitions. [2024-11-27 23:28:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 23:28:29,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:29,641 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:29,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:28:29,641 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:29,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash 638456000, now seen corresponding path program 1 times [2024-11-27 23:28:29,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:29,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685661447] [2024-11-27 23:28:29,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:29,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:29,804 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:29,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:29,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685661447] [2024-11-27 23:28:29,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685661447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:29,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:29,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:28:29,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585560673] [2024-11-27 23:28:29,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:29,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:28:29,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:29,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:28:29,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:28:29,806 INFO L87 Difference]: Start difference. First operand 168 states and 205 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:29,978 INFO L93 Difference]: Finished difference Result 375 states and 455 transitions. [2024-11-27 23:28:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-27 23:28:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:29,981 INFO L225 Difference]: With dead ends: 375 [2024-11-27 23:28:29,981 INFO L226 Difference]: Without dead ends: 245 [2024-11-27 23:28:29,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:29,982 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 49 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:29,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 261 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-27 23:28:30,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 168. [2024-11-27 23:28:30,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 159 states have internal predecessors, (196), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:30,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 204 transitions. [2024-11-27 23:28:30,006 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 204 transitions. Word has length 46 [2024-11-27 23:28:30,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:30,006 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 204 transitions. [2024-11-27 23:28:30,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:28:30,007 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 204 transitions. [2024-11-27 23:28:30,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-27 23:28:30,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:30,007 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:30,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:28:30,008 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:30,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:30,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1564459493, now seen corresponding path program 1 times [2024-11-27 23:28:30,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:30,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942844070] [2024-11-27 23:28:30,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:30,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:30,278 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:30,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942844070] [2024-11-27 23:28:30,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942844070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172487477] [2024-11-27 23:28:30,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:30,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:30,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:30,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:30,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:28:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:30,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:28:30,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:30,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:31,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172487477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:31,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:28:31,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 19 [2024-11-27 23:28:31,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020789245] [2024-11-27 23:28:31,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:31,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:28:31,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:31,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:28:31,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:28:31,626 INFO L87 Difference]: Start difference. First operand 168 states and 204 transitions. Second operand has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:32,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:32,519 INFO L93 Difference]: Finished difference Result 493 states and 593 transitions. [2024-11-27 23:28:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:28:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-11-27 23:28:32,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:32,522 INFO L225 Difference]: With dead ends: 493 [2024-11-27 23:28:32,522 INFO L226 Difference]: Without dead ends: 347 [2024-11-27 23:28:32,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=416, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:28:32,525 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 167 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:32,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 550 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:32,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-27 23:28:32,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 168. [2024-11-27 23:28:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 148 states have (on average 1.2972972972972974) internal successors, (192), 159 states have internal predecessors, (192), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:32,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2024-11-27 23:28:32,557 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 50 [2024-11-27 23:28:32,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:32,557 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2024-11-27 23:28:32,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:32,558 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2024-11-27 23:28:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-27 23:28:32,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:32,559 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:32,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:28:32,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:32,763 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:32,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:32,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1896222488, now seen corresponding path program 1 times [2024-11-27 23:28:32,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:32,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715601847] [2024-11-27 23:28:32,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:32,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:33,052 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:33,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:33,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715601847] [2024-11-27 23:28:33,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715601847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:33,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391997796] [2024-11-27 23:28:33,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:33,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:33,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:33,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:33,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:28:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:33,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:28:33,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:33,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:33,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391997796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:33,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:28:33,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-27 23:28:33,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857604939] [2024-11-27 23:28:33,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:33,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:28:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:33,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:28:33,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:28:33,750 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:28:34,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:34,507 INFO L93 Difference]: Finished difference Result 914 states and 1152 transitions. [2024-11-27 23:28:34,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:28:34,508 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 56 [2024-11-27 23:28:34,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:34,512 INFO L225 Difference]: With dead ends: 914 [2024-11-27 23:28:34,512 INFO L226 Difference]: Without dead ends: 794 [2024-11-27 23:28:34,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=508, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:28:34,515 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 421 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:34,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 777 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:28:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-27 23:28:34,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 200. [2024-11-27 23:28:34,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 180 states have (on average 1.288888888888889) internal successors, (232), 191 states have internal predecessors, (232), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:34,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 240 transitions. [2024-11-27 23:28:34,552 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 240 transitions. Word has length 56 [2024-11-27 23:28:34,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:34,552 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 240 transitions. [2024-11-27 23:28:34,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:28:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 240 transitions. [2024-11-27 23:28:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 23:28:34,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:34,554 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:34,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:28:34,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 23:28:34,755 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:34,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1885143929, now seen corresponding path program 2 times [2024-11-27 23:28:34,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:34,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173246870] [2024-11-27 23:28:34,756 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:34,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:34,817 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:34,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:35,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:35,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173246870] [2024-11-27 23:28:35,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173246870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:35,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717065573] [2024-11-27 23:28:35,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:35,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:35,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:35,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:28:35,451 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:35,452 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:35,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:28:35,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:37,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:39,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717065573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:39,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:28:39,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 15] total 36 [2024-11-27 23:28:39,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977673499] [2024-11-27 23:28:39,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:39,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 23:28:39,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:39,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 23:28:39,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=877, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 23:28:39,346 INFO L87 Difference]: Start difference. First operand 200 states and 240 transitions. Second operand has 36 states, 36 states have (on average 3.611111111111111) internal successors, (130), 36 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:46,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:28:52,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:28:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:56,572 INFO L93 Difference]: Finished difference Result 657 states and 793 transitions. [2024-11-27 23:28:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-27 23:28:56,573 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.611111111111111) internal successors, (130), 36 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2024-11-27 23:28:56,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:56,577 INFO L225 Difference]: With dead ends: 657 [2024-11-27 23:28:56,578 INFO L226 Difference]: Without dead ends: 509 [2024-11-27 23:28:56,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=830, Invalid=1720, Unknown=0, NotChecked=0, Total=2550 [2024-11-27 23:28:56,580 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 348 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 39 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:56,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1614 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1067 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2024-11-27 23:28:56,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-27 23:28:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 200. [2024-11-27 23:28:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 180 states have (on average 1.2444444444444445) internal successors, (224), 191 states have internal predecessors, (224), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:28:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 232 transitions. [2024-11-27 23:28:56,616 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 232 transitions. Word has length 66 [2024-11-27 23:28:56,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:56,616 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 232 transitions. [2024-11-27 23:28:56,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.611111111111111) internal successors, (130), 36 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:28:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 232 transitions. [2024-11-27 23:28:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:28:56,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:56,618 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:56,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:28:56,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:56,819 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:28:56,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1334055872, now seen corresponding path program 2 times [2024-11-27 23:28:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:56,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990865063] [2024-11-27 23:28:56,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:56,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:56,846 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:56,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 9 proven. 378 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:57,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990865063] [2024-11-27 23:28:57,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990865063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:28:57,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037642215] [2024-11-27 23:28:57,616 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:28:57,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:57,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:57,618 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:57,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:28:57,702 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:28:57,703 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:28:57,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:28:57,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 9 proven. 378 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:58,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:28:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 9 proven. 378 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:59,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037642215] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:59,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:28:59,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2024-11-27 23:28:59,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878181375] [2024-11-27 23:28:59,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:59,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-27 23:28:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:59,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-27 23:28:59,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 23:28:59,727 INFO L87 Difference]: Start difference. First operand 200 states and 232 transitions. Second operand has 50 states, 50 states have (on average 4.14) internal successors, (207), 50 states have internal predecessors, (207), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:29:01,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:01,217 INFO L93 Difference]: Finished difference Result 1586 states and 2016 transitions. [2024-11-27 23:29:01,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-27 23:29:01,218 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.14) internal successors, (207), 50 states have internal predecessors, (207), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 88 [2024-11-27 23:29:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:01,224 INFO L225 Difference]: With dead ends: 1586 [2024-11-27 23:29:01,224 INFO L226 Difference]: Without dead ends: 1466 [2024-11-27 23:29:01,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=992, Invalid=1764, Unknown=0, NotChecked=0, Total=2756 [2024-11-27 23:29:01,227 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 1311 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:01,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 784 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:29:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2024-11-27 23:29:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 264. [2024-11-27 23:29:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 244 states have (on average 1.2459016393442623) internal successors, (304), 255 states have internal predecessors, (304), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:29:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 312 transitions. [2024-11-27 23:29:01,277 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 312 transitions. Word has length 88 [2024-11-27 23:29:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:01,277 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 312 transitions. [2024-11-27 23:29:01,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.14) internal successors, (207), 50 states have internal predecessors, (207), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:29:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 312 transitions. [2024-11-27 23:29:01,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-27 23:29:01,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:01,279 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:01,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:29:01,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:01,481 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:01,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:01,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1402900129, now seen corresponding path program 3 times [2024-11-27 23:29:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:01,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436823219] [2024-11-27 23:29:01,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:29:01,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:01,625 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-27 23:29:01,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 18 proven. 364 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:29:03,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:03,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436823219] [2024-11-27 23:29:03,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436823219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:03,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829577469] [2024-11-27 23:29:03,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:29:03,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:03,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:03,051 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:03,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:29:03,440 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-27 23:29:03,440 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:03,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-27 23:29:03,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 18 proven. 364 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:29:09,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 18 proven. 364 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:29:23,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829577469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:23,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:23,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 33, 32] total 78 [2024-11-27 23:29:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365005938] [2024-11-27 23:29:23,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:23,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-11-27 23:29:23,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:23,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-11-27 23:29:23,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1827, Invalid=4179, Unknown=0, NotChecked=0, Total=6006 [2024-11-27 23:29:23,399 INFO L87 Difference]: Start difference. First operand 264 states and 312 transitions. Second operand has 78 states, 78 states have (on average 2.871794871794872) internal successors, (224), 78 states have internal predecessors, (224), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:48,894 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 95 DAG size of output: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:30:06,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:30:16,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:30:39,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:30:56,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:31:39,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:39,181 INFO L93 Difference]: Finished difference Result 996 states and 1204 transitions. [2024-11-27 23:31:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-27 23:31:39,181 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.871794871794872) internal successors, (224), 78 states have internal predecessors, (224), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 98 [2024-11-27 23:31:39,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:39,187 INFO L225 Difference]: With dead ends: 996 [2024-11-27 23:31:39,187 INFO L226 Difference]: Without dead ends: 850 [2024-11-27 23:31:39,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 157 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5118 ImplicationChecksByTransitivity, 99.3s TimeCoverageRelationStatistics Valid=3891, Invalid=8319, Unknown=0, NotChecked=0, Total=12210 [2024-11-27 23:31:39,192 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1010 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 3460 mSolverCounterSat, 144 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:39,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 3458 Invalid, 3606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3460 Invalid, 2 Unknown, 0 Unchecked, 48.8s Time] [2024-11-27 23:31:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-27 23:31:39,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 264. [2024-11-27 23:31:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 244 states have (on average 1.1844262295081966) internal successors, (289), 255 states have internal predecessors, (289), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 297 transitions. [2024-11-27 23:31:39,255 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 297 transitions. Word has length 98 [2024-11-27 23:31:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:39,256 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 297 transitions. [2024-11-27 23:31:39,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.871794871794872) internal successors, (224), 78 states have internal predecessors, (224), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:31:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 297 transitions. [2024-11-27 23:31:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:31:39,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:39,258 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:39,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 23:31:39,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:39,459 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:39,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2053723245, now seen corresponding path program 4 times [2024-11-27 23:31:39,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:39,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544546656] [2024-11-27 23:31:39,462 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:31:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:39,643 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:31:39,644 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-27 23:31:39,644 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:31:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:31:39,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:31:39,819 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:31:39,820 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-27 23:31:39,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-27 23:31:39,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-27 23:31:39,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-27 23:31:39,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-27 23:31:39,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-27 23:31:39,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-27 23:31:39,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-27 23:31:39,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-27 23:31:39,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-27 23:31:39,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-27 23:31:39,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-27 23:31:39,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-27 23:31:39,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-27 23:31:39,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-27 23:31:39,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-27 23:31:39,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:31:39,830 INFO L422 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:39,916 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:31:39,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:31:39 BoogieIcfgContainer [2024-11-27 23:31:39,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:31:39,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:31:39,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:31:39,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:31:39,924 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:22" (3/4) ... [2024-11-27 23:31:39,928 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:31:39,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:31:39,931 INFO L158 Benchmark]: Toolchain (without parser) took 199126.66ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.6MB in the beginning and 69.6MB in the end (delta: 23.0MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2024-11-27 23:31:39,931 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:31:39,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.51ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 78.8MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:31:39,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.05ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:31:39,935 INFO L158 Benchmark]: Boogie Preprocessor took 48.70ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:31:39,935 INFO L158 Benchmark]: RCFGBuilder took 870.54ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 52.1MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:31:39,935 INFO L158 Benchmark]: TraceAbstraction took 197688.66ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 51.5MB in the beginning and 69.6MB in the end (delta: -18.1MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2024-11-27 23:31:39,936 INFO L158 Benchmark]: Witness Printer took 6.29ms. Allocated memory is still 176.2MB. Free memory was 69.6MB in the beginning and 69.6MB in the end (delta: 33.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:31:39,937 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.51ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 78.8MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.05ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.70ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 870.54ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 52.1MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 197688.66ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 51.5MB in the beginning and 69.6MB in the end (delta: -18.1MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Witness Printer took 6.29ms. Allocated memory is still 176.2MB. Free memory was 69.6MB in the beginning and 69.6MB in the end (delta: 33.1kB). Peak memory consumption was 8.4MB. 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 76. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=0, eb=0] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L238] RET, EXPR base2flt(0, 0) VAL [ea=0, eb=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] EXPR m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24] [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR (e + 128) << 24U VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR m | (unsigned int )((e + 128) << 24U) VAL [\old(e)=0, \old(m)=1] [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [ea=0, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] EXPR m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 121 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 197.5s, OverallIterations: 26, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 159.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 4389 SdHoareTripleChecker+Valid, 67.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4379 mSDsluCounter, 13066 SdHoareTripleChecker+Invalid, 65.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10380 mSDsCounter, 379 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7205 IncrementalHoareTripleChecker+Invalid, 7588 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 379 mSolverCounterUnsat, 2686 mSDtfsCounter, 7205 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1090 GetRequests, 749 SyntacticMatches, 4 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7578 ImplicationChecksByTransitivity, 108.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=24, InterpolantAutomatonStates: 280, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 3408 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 33.3s InterpolantComputationTime, 1410 NumberOfCodeBlocks, 1410 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 1630 ConstructedInterpolants, 0 QuantifiedInterpolants, 9612 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1111 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 40 InterpolantComputations, 19 PerfectInterpolantSequences, 414/3063 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 [2024-11-27 23:31:40,163 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-27 23:31:40,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 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_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/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_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:43,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:43,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-27 23:31:43,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:43,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:43,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:43,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:43,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:43,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:43,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:43,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:43,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:43,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:43,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:43,292 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:43,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:43,293 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:43,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:43,295 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:43,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:43,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:43,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:43,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:43,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:43,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:43,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:43,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:43,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:43,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:43,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:43,300 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:43,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:43,300 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:31:43,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:31:43,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:43,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:43,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:43,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:43,302 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_55c62e73-76d8-41b5-abb0-6e9becff5fae/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 ! overflow) ) 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 -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2024-11-27 23:31:43,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:43,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:43,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:43,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:43,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:43,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2024-11-27 23:31:47,182 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/7aba342a1/16c22d81244344e5b0dba24203e59c7a/FLAG8da435d50 [2024-11-27 23:31:47,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:47,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2024-11-27 23:31:47,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/7aba342a1/16c22d81244344e5b0dba24203e59c7a/FLAG8da435d50 [2024-11-27 23:31:47,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/data/7aba342a1/16c22d81244344e5b0dba24203e59c7a [2024-11-27 23:31:47,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:47,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:47,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:47,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:47,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:47,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:47" (1/1) ... [2024-11-27 23:31:47,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77579279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:47, skipping insertion in model container [2024-11-27 23:31:47,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:47" (1/1) ... [2024-11-27 23:31:47,568 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:47,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:47,926 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:48,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:48,036 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:48,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48 WrapperNode [2024-11-27 23:31:48,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:48,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:48,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:48,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:48,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,090 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 135 [2024-11-27 23:31:48,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:48,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:48,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:48,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:48,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,107 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,121 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:31:48,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,131 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:48,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:48,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:48,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:48,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:48,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:48,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:48,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:31:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-27 23:31:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-27 23:31:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:31:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:31:48,325 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:48,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:48,944 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:48,944 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:48,960 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:48,960 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:31:48,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:48 BoogieIcfgContainer [2024-11-27 23:31:48,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:48,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:48,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:48,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:48,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:47" (1/3) ... [2024-11-27 23:31:48,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688e5234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:48, skipping insertion in model container [2024-11-27 23:31:48,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (2/3) ... [2024-11-27 23:31:48,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688e5234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:48, skipping insertion in model container [2024-11-27 23:31:48,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:48" (3/3) ... [2024-11-27 23:31:48,977 INFO L128 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2024-11-27 23:31:49,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:49,035 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG soft_float_5.c.cil.c that has 3 procedures, 98 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-27 23:31:49,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:49,114 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;@723f0772, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:49,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-27 23:31:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 91 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:31:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 23:31:49,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:49,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:49,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:49,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:49,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1939386347, now seen corresponding path program 1 times [2024-11-27 23:31:49,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:49,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813206097] [2024-11-27 23:31:49,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:49,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:49,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:49,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:49,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:31:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:49,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:31:49,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:49,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:49,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:49,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813206097] [2024-11-27 23:31:49,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813206097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:49,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:49,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:31:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637421592] [2024-11-27 23:31:49,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:49,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:49,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:49,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:49,366 INFO L87 Difference]: Start difference. First operand has 98 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 91 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:49,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:49,525 INFO L93 Difference]: Finished difference Result 187 states and 251 transitions. [2024-11-27 23:31:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:49,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 23:31:49,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:49,542 INFO L225 Difference]: With dead ends: 187 [2024-11-27 23:31:49,542 INFO L226 Difference]: Without dead ends: 76 [2024-11-27 23:31:49,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:49,554 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:49,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 298 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-27 23:31:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-27 23:31:49,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 69 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2024-11-27 23:31:49,617 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 8 [2024-11-27 23:31:49,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:49,618 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2024-11-27 23:31:49,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2024-11-27 23:31:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 23:31:49,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:49,620 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:49,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:49,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:49,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:49,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1563891585, now seen corresponding path program 1 times [2024-11-27 23:31:49,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:49,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238991077] [2024-11-27 23:31:49,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:49,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:49,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:49,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:49,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:31:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:49,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:31:49,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:49,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:49,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:49,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238991077] [2024-11-27 23:31:49,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238991077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:49,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:49,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:49,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200512958] [2024-11-27 23:31:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:49,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:49,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:49,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:49,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:49,968 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:50,150 INFO L93 Difference]: Finished difference Result 184 states and 220 transitions. [2024-11-27 23:31:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:50,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-27 23:31:50,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:50,154 INFO L225 Difference]: With dead ends: 184 [2024-11-27 23:31:50,154 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 23:31:50,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:50,156 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 61 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:50,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 206 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 23:31:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-11-27 23:31:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 100 states have internal predecessors, (123), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2024-11-27 23:31:50,185 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 15 [2024-11-27 23:31:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:50,186 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2024-11-27 23:31:50,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2024-11-27 23:31:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:31:50,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:50,188 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:50,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:50,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:50,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:50,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:50,389 INFO L85 PathProgramCache]: Analyzing trace with hash 889671558, now seen corresponding path program 1 times [2024-11-27 23:31:50,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:50,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929194324] [2024-11-27 23:31:50,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:50,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:50,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:50,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:50,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:31:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:50,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:31:50,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:50,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:50,715 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:50,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929194324] [2024-11-27 23:31:50,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929194324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:50,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:50,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 23:31:50,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098397777] [2024-11-27 23:31:50,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:50,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:50,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:50,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:50,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:50,719 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:51,323 INFO L93 Difference]: Finished difference Result 221 states and 273 transitions. [2024-11-27 23:31:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:31:51,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-27 23:31:51,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:51,330 INFO L225 Difference]: With dead ends: 221 [2024-11-27 23:31:51,331 INFO L226 Difference]: Without dead ends: 152 [2024-11-27 23:31:51,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:31:51,336 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 218 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:51,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 298 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:31:51,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-27 23:31:51,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 116. [2024-11-27 23:31:51,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 108 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 139 transitions. [2024-11-27 23:31:51,366 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 139 transitions. Word has length 19 [2024-11-27 23:31:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:51,366 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 139 transitions. [2024-11-27 23:31:51,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 139 transitions. [2024-11-27 23:31:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 23:31:51,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:51,367 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:51,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:31:51,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:51,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:51,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:51,568 INFO L85 PathProgramCache]: Analyzing trace with hash -667287910, now seen corresponding path program 1 times [2024-11-27 23:31:51,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:51,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021514761] [2024-11-27 23:31:51,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:51,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:51,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:51,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:51,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:31:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:51,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:31:51,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:51,657 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:51,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:51,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021514761] [2024-11-27 23:31:51,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021514761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:51,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:51,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:31:51,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931925278] [2024-11-27 23:31:51,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:51,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:51,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:51,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:51,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:51,660 INFO L87 Difference]: Start difference. First operand 116 states and 139 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:51,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:51,743 INFO L93 Difference]: Finished difference Result 194 states and 227 transitions. [2024-11-27 23:31:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-27 23:31:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:51,745 INFO L225 Difference]: With dead ends: 194 [2024-11-27 23:31:51,745 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 23:31:51,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:51,747 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 27 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:51,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 226 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 23:31:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2024-11-27 23:31:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.353658536585366) internal successors, (111), 94 states have internal predecessors, (111), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2024-11-27 23:31:51,761 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 20 [2024-11-27 23:31:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:51,761 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2024-11-27 23:31:51,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2024-11-27 23:31:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-27 23:31:51,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:51,763 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:51,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:31:51,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:51,967 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:51,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:51,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1912655820, now seen corresponding path program 1 times [2024-11-27 23:31:51,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:51,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60981489] [2024-11-27 23:31:51,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:51,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:51,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:51,971 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:51,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:31:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:52,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:31:52,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:52,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:52,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60981489] [2024-11-27 23:31:52,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60981489] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:52,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:52,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2024-11-27 23:31:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616971470] [2024-11-27 23:31:52,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:52,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:31:52,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:52,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:31:52,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:31:52,368 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:52,981 INFO L93 Difference]: Finished difference Result 223 states and 262 transitions. [2024-11-27 23:31:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:31:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-27 23:31:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:52,983 INFO L225 Difference]: With dead ends: 223 [2024-11-27 23:31:52,983 INFO L226 Difference]: Without dead ends: 143 [2024-11-27 23:31:52,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:31:52,986 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 146 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:52,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 639 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:31:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-27 23:31:53,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 111. [2024-11-27 23:31:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 103 states have internal predecessors, (122), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:53,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2024-11-27 23:31:53,025 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 24 [2024-11-27 23:31:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:53,025 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2024-11-27 23:31:53,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2024-11-27 23:31:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 23:31:53,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:53,026 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:53,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:31:53,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:53,228 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:53,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:53,229 INFO L85 PathProgramCache]: Analyzing trace with hash 184000928, now seen corresponding path program 1 times [2024-11-27 23:31:53,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:53,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323240002] [2024-11-27 23:31:53,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:53,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:53,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:53,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:53,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:31:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:53,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:31:53,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:31:53,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:31:53,716 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:53,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323240002] [2024-11-27 23:31:53,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323240002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:53,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:53,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 23:31:53,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377192591] [2024-11-27 23:31:53,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:53,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:31:53,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:53,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:31:53,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:31:53,718 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:31:54,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:54,601 INFO L93 Difference]: Finished difference Result 258 states and 324 transitions. [2024-11-27 23:31:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:31:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-27 23:31:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:54,604 INFO L225 Difference]: With dead ends: 258 [2024-11-27 23:31:54,604 INFO L226 Difference]: Without dead ends: 187 [2024-11-27 23:31:54,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:31:54,606 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 101 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:54,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 391 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:31:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-27 23:31:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 112. [2024-11-27 23:31:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 104 states have internal predecessors, (120), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2024-11-27 23:31:54,626 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 34 [2024-11-27 23:31:54,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:54,626 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2024-11-27 23:31:54,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:31:54,626 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2024-11-27 23:31:54,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 23:31:54,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:54,628 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:54,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:54,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:54,832 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:54,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash 740066720, now seen corresponding path program 2 times [2024-11-27 23:31:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:54,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785063410] [2024-11-27 23:31:54,833 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:54,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:54,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:54,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:31:54,907 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:54,908 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:54,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 23:31:54,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:55,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:56,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:56,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785063410] [2024-11-27 23:31:56,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785063410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:56,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:56,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 24 [2024-11-27 23:31:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301424399] [2024-11-27 23:31:56,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:56,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:31:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:56,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:31:56,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:31:56,152 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 22 states have internal predecessors, (64), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:57,708 INFO L93 Difference]: Finished difference Result 261 states and 307 transitions. [2024-11-27 23:31:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 23:31:57,709 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 22 states have internal predecessors, (64), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2024-11-27 23:31:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:57,711 INFO L225 Difference]: With dead ends: 261 [2024-11-27 23:31:57,711 INFO L226 Difference]: Without dead ends: 187 [2024-11-27 23:31:57,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=528, Invalid=1278, Unknown=0, NotChecked=0, Total=1806 [2024-11-27 23:31:57,713 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 416 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:57,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1182 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:31:57,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-27 23:31:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 143. [2024-11-27 23:31:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 123 states have (on average 1.2845528455284554) internal successors, (158), 135 states have internal predecessors, (158), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2024-11-27 23:31:57,745 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 40 [2024-11-27 23:31:57,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:57,745 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2024-11-27 23:31:57,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 22 states have internal predecessors, (64), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2024-11-27 23:31:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-27 23:31:57,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:57,750 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:57,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:31:57,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:57,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:57,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash 682237964, now seen corresponding path program 2 times [2024-11-27 23:31:57,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:31:57,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10435385] [2024-11-27 23:31:57,954 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:57,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:57,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:57,958 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:57,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:31:58,016 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:58,016 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:58,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:31:58,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:31:58,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:31:59,267 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:31:59,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10435385] [2024-11-27 23:31:59,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10435385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:59,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:59,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-11-27 23:31:59,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209468917] [2024-11-27 23:31:59,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:59,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:31:59,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:31:59,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:31:59,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:31:59,270 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:32:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:02,023 INFO L93 Difference]: Finished difference Result 370 states and 488 transitions. [2024-11-27 23:32:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:32:02,025 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-11-27 23:32:02,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:02,028 INFO L225 Difference]: With dead ends: 370 [2024-11-27 23:32:02,028 INFO L226 Difference]: Without dead ends: 299 [2024-11-27 23:32:02,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:32:02,030 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 344 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:02,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 865 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:32:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-27 23:32:02,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 144. [2024-11-27 23:32:02,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 136 states have internal predecessors, (152), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2024-11-27 23:32:02,053 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 50 [2024-11-27 23:32:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:02,053 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 160 transitions. [2024-11-27 23:32:02,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:32:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 160 transitions. [2024-11-27 23:32:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 23:32:02,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:02,056 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:02,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:02,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:02,260 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:02,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash 19277944, now seen corresponding path program 3 times [2024-11-27 23:32:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:02,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692887267] [2024-11-27 23:32:02,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:32:02,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:02,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:02,263 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:02,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:32:02,372 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-27 23:32:02,372 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:02,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:32:02,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 2 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:02,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:04,240 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 2 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:04,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:04,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692887267] [2024-11-27 23:32:04,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692887267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:04,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:04,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2024-11-27 23:32:04,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791753617] [2024-11-27 23:32:04,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:04,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-27 23:32:04,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:32:04,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-27 23:32:04,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 23:32:04,245 INFO L87 Difference]: Start difference. First operand 144 states and 160 transitions. Second operand has 35 states, 35 states have (on average 3.657142857142857) internal successors, (128), 33 states have internal predecessors, (128), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:32:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:12,336 INFO L93 Difference]: Finished difference Result 511 states and 609 transitions. [2024-11-27 23:32:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-27 23:32:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.657142857142857) internal successors, (128), 33 states have internal predecessors, (128), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2024-11-27 23:32:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:12,339 INFO L225 Difference]: With dead ends: 511 [2024-11-27 23:32:12,339 INFO L226 Difference]: Without dead ends: 437 [2024-11-27 23:32:12,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2170 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=2582, Invalid=6924, Unknown=0, NotChecked=0, Total=9506 [2024-11-27 23:32:12,349 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 654 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:12,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 4066 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1603 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:32:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-27 23:32:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 207. [2024-11-27 23:32:12,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 187 states have (on average 1.2352941176470589) internal successors, (231), 199 states have internal predecessors, (231), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:12,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 239 transitions. [2024-11-27 23:32:12,401 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 239 transitions. Word has length 72 [2024-11-27 23:32:12,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:12,402 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 239 transitions. [2024-11-27 23:32:12,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.657142857142857) internal successors, (128), 33 states have internal predecessors, (128), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:32:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 239 transitions. [2024-11-27 23:32:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 23:32:12,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:12,408 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:12,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 23:32:12,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:12,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:12,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:12,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1619530980, now seen corresponding path program 3 times [2024-11-27 23:32:12,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:12,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966996535] [2024-11-27 23:32:12,610 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:32:12,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:12,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:12,612 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:12,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:32:12,677 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:32:12,677 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:12,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:32:12,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-27 23:32:12,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:12,761 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:12,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966996535] [2024-11-27 23:32:12,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966996535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:12,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:12,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:12,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977977370] [2024-11-27 23:32:12,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:12,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:32:12,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:32:12,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:32:12,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:32:12,762 INFO L87 Difference]: Start difference. First operand 207 states and 239 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:32:13,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:13,552 INFO L93 Difference]: Finished difference Result 227 states and 264 transitions. [2024-11-27 23:32:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:13,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2024-11-27 23:32:13,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:13,555 INFO L225 Difference]: With dead ends: 227 [2024-11-27 23:32:13,555 INFO L226 Difference]: Without dead ends: 223 [2024-11-27 23:32:13,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:13,556 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 60 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:13,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 163 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:32:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-27 23:32:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2024-11-27 23:32:13,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 196 states have (on average 1.2346938775510203) internal successors, (242), 208 states have internal predecessors, (242), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 250 transitions. [2024-11-27 23:32:13,605 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 250 transitions. Word has length 82 [2024-11-27 23:32:13,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:13,607 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 250 transitions. [2024-11-27 23:32:13,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:32:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 250 transitions. [2024-11-27 23:32:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:32:13,610 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:13,610 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:13,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:32:13,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:13,811 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:13,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2079887585, now seen corresponding path program 1 times [2024-11-27 23:32:13,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:13,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927500982] [2024-11-27 23:32:13,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:13,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:13,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:13,814 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:13,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:32:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:13,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:32:13,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 9 proven. 378 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:14,814 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 9 proven. 378 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:17,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:17,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927500982] [2024-11-27 23:32:17,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927500982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:17,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:17,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2024-11-27 23:32:17,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434111767] [2024-11-27 23:32:17,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:17,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 23:32:17,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:32:17,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 23:32:17,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 23:32:17,563 INFO L87 Difference]: Start difference. First operand 216 states and 250 transitions. Second operand has 36 states, 36 states have (on average 3.9444444444444446) internal successors, (142), 36 states have internal predecessors, (142), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:32:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:27,343 INFO L93 Difference]: Finished difference Result 608 states and 834 transitions. [2024-11-27 23:32:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 23:32:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.9444444444444446) internal successors, (142), 36 states have internal predecessors, (142), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2024-11-27 23:32:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:27,347 INFO L225 Difference]: With dead ends: 608 [2024-11-27 23:32:27,347 INFO L226 Difference]: Without dead ends: 528 [2024-11-27 23:32:27,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=864, Invalid=1586, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 23:32:27,350 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 741 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 4235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:27,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1735 Invalid, 4235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-27 23:32:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-27 23:32:27,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 217. [2024-11-27 23:32:27,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 197 states have (on average 1.1573604060913705) internal successors, (228), 209 states have internal predecessors, (228), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 236 transitions. [2024-11-27 23:32:27,401 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 236 transitions. Word has length 85 [2024-11-27 23:32:27,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:27,401 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 236 transitions. [2024-11-27 23:32:27,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.9444444444444446) internal successors, (142), 36 states have internal predecessors, (142), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:32:27,402 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 236 transitions. [2024-11-27 23:32:27,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-27 23:32:27,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:27,403 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:27,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:32:27,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:27,604 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:27,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:27,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1824701178, now seen corresponding path program 4 times [2024-11-27 23:32:27,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:32:27,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482583973] [2024-11-27 23:32:27,604 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:32:27,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:27,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:27,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:27,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:32:27,676 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:32:27,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:27,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 23:32:27,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 2 proven. 1104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:28,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 2 proven. 1104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:31,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:32:31,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482583973] [2024-11-27 23:32:31,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482583973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:31,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:31,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2024-11-27 23:32:31,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992266583] [2024-11-27 23:32:31,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:31,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-27 23:32:31,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:32:31,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-27 23:32:31,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2024-11-27 23:32:31,784 INFO L87 Difference]: Start difference. First operand 217 states and 236 transitions. Second operand has 54 states, 53 states have (on average 3.981132075471698) internal successors, (211), 52 states have internal predecessors, (211), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:33:04,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:04,690 INFO L93 Difference]: Finished difference Result 401 states and 490 transitions. [2024-11-27 23:33:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-27 23:33:04,692 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 3.981132075471698) internal successors, (211), 52 states have internal predecessors, (211), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2024-11-27 23:33:04,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:04,694 INFO L225 Difference]: With dead ends: 401 [2024-11-27 23:33:04,694 INFO L226 Difference]: Without dead ends: 396 [2024-11-27 23:33:04,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2111 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=4535, Invalid=12235, Unknown=0, NotChecked=0, Total=16770 [2024-11-27 23:33:04,699 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 566 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 4023 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:04,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 3491 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4023 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 23:33:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-27 23:33:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 314. [2024-11-27 23:33:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 295 states have (on average 1.2508474576271187) internal successors, (369), 306 states have internal predecessors, (369), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:33:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 377 transitions. [2024-11-27 23:33:04,809 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 377 transitions. Word has length 112 [2024-11-27 23:33:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:04,809 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 377 transitions. [2024-11-27 23:33:04,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 3.981132075471698) internal successors, (211), 52 states have internal predecessors, (211), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:33:04,810 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 377 transitions. [2024-11-27 23:33:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 23:33:04,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:04,811 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:04,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 23:33:05,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:05,012 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:05,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:05,013 INFO L85 PathProgramCache]: Analyzing trace with hash 825656494, now seen corresponding path program 1 times [2024-11-27 23:33:05,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:05,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700860738] [2024-11-27 23:33:05,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:05,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:05,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:05,015 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:05,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:33:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:33:05,101 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:33:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:33:05,189 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-27 23:33:05,189 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:33:05,190 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-27 23:33:05,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-27 23:33:05,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-27 23:33:05,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-27 23:33:05,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-27 23:33:05,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-27 23:33:05,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-27 23:33:05,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-27 23:33:05,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-27 23:33:05,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-27 23:33:05,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-27 23:33:05,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-27 23:33:05,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-27 23:33:05,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-27 23:33:05,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-27 23:33:05,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-27 23:33:05,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-27 23:33:05,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-27 23:33:05,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:33:05,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:05,401 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:05,449 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:33:05,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:33:05 BoogieIcfgContainer [2024-11-27 23:33:05,453 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:33:05,454 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:33:05,454 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:33:05,454 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:33:05,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:48" (3/4) ... [2024-11-27 23:33:05,456 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-27 23:33:05,543 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 60. [2024-11-27 23:33:05,672 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:33:05,673 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:33:05,673 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:33:05,674 INFO L158 Benchmark]: Toolchain (without parser) took 78158.26ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 60.4MB in the beginning and 40.6MB in the end (delta: 19.8MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:05,674 INFO L158 Benchmark]: CDTParser took 4.42ms. Allocated memory is still 83.9MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:05,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.61ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 46.2MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:33:05,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.60ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 44.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:05,675 INFO L158 Benchmark]: Boogie Preprocessor took 53.00ms. Allocated memory is still 83.9MB. Free memory was 44.6MB in the beginning and 42.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:05,676 INFO L158 Benchmark]: RCFGBuilder took 816.24ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 23.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:33:05,677 INFO L158 Benchmark]: TraceAbstraction took 76488.72ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 22.9MB in the beginning and 49.6MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:05,677 INFO L158 Benchmark]: Witness Printer took 219.54ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 40.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:05,679 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.42ms. Allocated memory is still 83.9MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.61ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 46.2MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.60ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 44.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.00ms. Allocated memory is still 83.9MB. Free memory was 44.6MB in the beginning and 42.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 816.24ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 23.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 76488.72ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 22.9MB in the beginning and 49.6MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 219.54ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 40.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 77]: integer overflow possible integer overflow possible We found a FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L238] RET, EXPR base2flt(0, 0) [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 98 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 76.3s, OverallIterations: 13, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 58.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3338 SdHoareTripleChecker+Valid, 17.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3338 mSDsluCounter, 13560 SdHoareTripleChecker+Invalid, 15.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12362 mSDsCounter, 771 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11657 IncrementalHoareTripleChecker+Invalid, 12428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 771 mSolverCounterUnsat, 1198 mSDtfsCounter, 11657 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1233 GetRequests, 841 SyntacticMatches, 0 SemanticMatches, 392 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4796 ImplicationChecksByTransitivity, 48.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=12, InterpolantAutomatonStates: 282, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 986 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 691 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 977 ConstructedInterpolants, 7 QuantifiedInterpolants, 7036 SizeOfPredicates, 9 NumberOfNonLiveVariables, 886 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 472/4440 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 proved your program to be incorrect! [2024-11-27 23:33:05,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c62e73-76d8-41b5-abb0-6e9becff5fae/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)