./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.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_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/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_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/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_755991e0-b400-4bb9-96f2-8187d3f82546/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 3f8ee4f5181b3404c1367dbf131683f1e761cea6b176154f687b628466c991fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:21:16,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:21:16,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 05:21:16,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:21:16,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:21:16,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:21:16,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:21:16,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:21:16,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:21:16,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:21:16,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:21:16,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:21:16,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:21:16,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:21:16,231 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:21:16,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:21:16,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:21:16,231 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:21:16,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:21:16,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:21:16,233 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:21:16,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:21:16,234 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:21:16,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:21:16,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:21:16,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:21:16,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:21:16,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:21:16,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:21:16,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:21:16,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:21:16,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:21:16,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:21:16,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:21:16,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:21:16,236 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_755991e0-b400-4bb9-96f2-8187d3f82546/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 -> 3f8ee4f5181b3404c1367dbf131683f1e761cea6b176154f687b628466c991fe [2024-11-28 05:21:16,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:21:16,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:21:16,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:21:16,586 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:21:16,586 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:21:16,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c [2024-11-28 05:21:20,103 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/data/2c6705be7/16831a08f57641a6b8e29f31f696a89a/FLAGd3c0ccfc5 [2024-11-28 05:21:20,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:21:20,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/sv-benchmarks/c/recursive-simple/id_i10_o10-2.c [2024-11-28 05:21:20,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/data/2c6705be7/16831a08f57641a6b8e29f31f696a89a/FLAGd3c0ccfc5 [2024-11-28 05:21:20,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/data/2c6705be7/16831a08f57641a6b8e29f31f696a89a [2024-11-28 05:21:20,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:21:20,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:21:20,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:21:20,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:21:20,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:21:20,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b530e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20, skipping insertion in model container [2024-11-28 05:21:20,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:21:20,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:21:20,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:21:20,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:21:20,720 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:21:20,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20 WrapperNode [2024-11-28 05:21:20,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:21:20,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:21:20,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:21:20,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:21:20,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,753 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-28 05:21:20,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:21:20,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:21:20,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:21:20,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:21:20,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,765 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,775 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]. [2024-11-28 05:21:20,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,778 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:21:20,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:21:20,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:21:20,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:21:20,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (1/1) ... [2024-11-28 05:21:20,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:21:20,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:20,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:21:20,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:21:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:21:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:21:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:21:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:21:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-28 05:21:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-28 05:21:20,955 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:21:20,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:21:21,141 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-28 05:21:21,143 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:21:21,158 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:21:21,158 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:21:21,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:21:21 BoogieIcfgContainer [2024-11-28 05:21:21,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:21:21,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:21:21,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:21:21,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:21:21,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:21:20" (1/3) ... [2024-11-28 05:21:21,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1c823b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:21:21, skipping insertion in model container [2024-11-28 05:21:21,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:21:20" (2/3) ... [2024-11-28 05:21:21,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1c823b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:21:21, skipping insertion in model container [2024-11-28 05:21:21,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:21:21" (3/3) ... [2024-11-28 05:21:21,175 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i10_o10-2.c [2024-11-28 05:21:21,197 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:21:21,200 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_i10_o10-2.c that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 05:21:21,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:21:21,296 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;@4c36e8d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:21:21,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 05:21:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:21:21,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 05:21:21,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:21,313 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 05:21:21,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:21,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash 890350836, now seen corresponding path program 1 times [2024-11-28 05:21:21,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:21,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201962647] [2024-11-28 05:21:21,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:21,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:21,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201962647] [2024-11-28 05:21:21,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201962647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:21,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:21,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:21:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814842105] [2024-11-28 05:21:21,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:21,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:21:21,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:21,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:21:21,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:21:21,685 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-28 05:21:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:21,821 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2024-11-28 05:21:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:21:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2024-11-28 05:21:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:21,833 INFO L225 Difference]: With dead ends: 46 [2024-11-28 05:21:21,833 INFO L226 Difference]: Without dead ends: 28 [2024-11-28 05:21:21,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:21:21,848 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:21,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:21:21,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-28 05:21:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2024-11-28 05:21:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:21:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-28 05:21:21,895 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2024-11-28 05:21:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:21,896 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-28 05:21:21,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-28 05:21:21,897 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-28 05:21:21,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 05:21:21,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:21,897 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:21,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:21:21,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:21,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:21,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1831072195, now seen corresponding path program 1 times [2024-11-28 05:21:21,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:21,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506402118] [2024-11-28 05:21:21,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:21,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:22,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506402118] [2024-11-28 05:21:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506402118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:22,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:22,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:21:22,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372039611] [2024-11-28 05:21:22,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:22,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:21:22,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:22,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:21:22,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:21:22,008 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-28 05:21:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:22,076 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-28 05:21:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:21:22,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 7 [2024-11-28 05:21:22,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:22,079 INFO L225 Difference]: With dead ends: 27 [2024-11-28 05:21:22,080 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 05:21:22,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:21:22,081 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:22,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:21:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 05:21:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-28 05:21:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:21:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-28 05:21:22,096 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2024-11-28 05:21:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:22,096 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-28 05:21:22,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-28 05:21:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-28 05:21:22,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 05:21:22,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:22,102 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:22,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:21:22,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:22,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:22,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1922931507, now seen corresponding path program 1 times [2024-11-28 05:21:22,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:22,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973594700] [2024-11-28 05:21:22,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:22,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:22,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:22,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973594700] [2024-11-28 05:21:22,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973594700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:22,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549504845] [2024-11-28 05:21:22,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:22,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:22,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:22,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:22,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:21:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:22,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:21:22,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:22,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:22,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549504845] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:22,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:22,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-28 05:21:22,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084503871] [2024-11-28 05:21:22,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:22,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:21:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:22,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:21:22,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:21:22,597 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:22,848 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2024-11-28 05:21:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:21:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 05:21:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:22,850 INFO L225 Difference]: With dead ends: 76 [2024-11-28 05:21:22,850 INFO L226 Difference]: Without dead ends: 68 [2024-11-28 05:21:22,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:21:22,851 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:22,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 95 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:21:22,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-28 05:21:22,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-28 05:21:22,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:21:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-28 05:21:22,881 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2024-11-28 05:21:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:22,882 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-28 05:21:22,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:22,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-28 05:21:22,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 05:21:22,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:22,883 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:22,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:21:23,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:23,084 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:23,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:23,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1856245274, now seen corresponding path program 1 times [2024-11-28 05:21:23,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:23,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975667302] [2024-11-28 05:21:23,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:23,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 05:21:23,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:23,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975667302] [2024-11-28 05:21:23,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975667302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:23,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:23,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:21:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557581898] [2024-11-28 05:21:23,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:23,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:21:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:23,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:21:23,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:21:23,220 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-28 05:21:23,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:23,261 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2024-11-28 05:21:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:21:23,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 19 [2024-11-28 05:21:23,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:23,265 INFO L225 Difference]: With dead ends: 74 [2024-11-28 05:21:23,266 INFO L226 Difference]: Without dead ends: 72 [2024-11-28 05:21:23,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:21:23,268 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:23,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:21:23,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-28 05:21:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-28 05:21:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 05:21:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-28 05:21:23,304 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2024-11-28 05:21:23,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:23,305 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-28 05:21:23,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-28 05:21:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-28 05:21:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 05:21:23,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:23,307 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:23,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:21:23,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:23,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash -614066819, now seen corresponding path program 1 times [2024-11-28 05:21:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851279874] [2024-11-28 05:21:23,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:23,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 05:21:23,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:23,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851279874] [2024-11-28 05:21:23,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851279874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:23,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:23,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:21:23,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078385624] [2024-11-28 05:21:23,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:23,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:21:23,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:23,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:21:23,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:21:23,388 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-28 05:21:23,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:23,407 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-28 05:21:23,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:21:23,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 24 [2024-11-28 05:21:23,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:23,409 INFO L225 Difference]: With dead ends: 72 [2024-11-28 05:21:23,409 INFO L226 Difference]: Without dead ends: 71 [2024-11-28 05:21:23,409 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 [2024-11-28 05:21:23,410 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:23,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:21:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-28 05:21:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-28 05:21:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 05:21:23,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-28 05:21:23,427 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2024-11-28 05:21:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:23,428 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-28 05:21:23,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-28 05:21:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-28 05:21:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 05:21:23,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:23,429 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-11-28 05:21:23,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:21:23,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:23,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:23,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1990585420, now seen corresponding path program 2 times [2024-11-28 05:21:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368217947] [2024-11-28 05:21:23,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:21:23,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:23,463 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:21:23,463 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:23,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:23,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368217947] [2024-11-28 05:21:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368217947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424745488] [2024-11-28 05:21:23,790 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:21:23,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:23,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:23,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:23,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:21:23,847 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:21:23,847 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:23,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:21:23,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:24,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:24,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424745488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:24,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:24,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-28 05:21:24,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691904049] [2024-11-28 05:21:24,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:24,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 05:21:24,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:24,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 05:21:24,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-11-28 05:21:24,360 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:24,886 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2024-11-28 05:21:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 05:21:24,887 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-28 05:21:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:24,889 INFO L225 Difference]: With dead ends: 188 [2024-11-28 05:21:24,889 INFO L226 Difference]: Without dead ends: 156 [2024-11-28 05:21:24,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:21:24,891 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 247 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:24,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:21:24,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-28 05:21:24,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-28 05:21:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-28 05:21:24,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2024-11-28 05:21:24,920 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2024-11-28 05:21:24,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:24,920 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2024-11-28 05:21:24,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2024-11-28 05:21:24,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 05:21:24,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:24,921 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:24,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:21:25,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:25,122 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:25,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1350016289, now seen corresponding path program 1 times [2024-11-28 05:21:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:25,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957829385] [2024-11-28 05:21:25,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 05:21:25,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:25,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957829385] [2024-11-28 05:21:25,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957829385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593541779] [2024-11-28 05:21:25,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:25,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:25,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:25,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:25,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:21:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:25,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:21:25,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:21:25,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:21:26,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593541779] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:26,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:26,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2024-11-28 05:21:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950931798] [2024-11-28 05:21:26,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:26,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 05:21:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:26,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 05:21:26,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:21:26,247 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:21:26,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:26,972 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2024-11-28 05:21:26,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 05:21:26,972 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2024-11-28 05:21:26,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:26,974 INFO L225 Difference]: With dead ends: 208 [2024-11-28 05:21:26,974 INFO L226 Difference]: Without dead ends: 142 [2024-11-28 05:21:26,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 05:21:26,976 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 164 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:26,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 462 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:21:26,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-28 05:21:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2024-11-28 05:21:26,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2024-11-28 05:21:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2024-11-28 05:21:26,999 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2024-11-28 05:21:26,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:26,999 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2024-11-28 05:21:27,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:21:27,000 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2024-11-28 05:21:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 05:21:27,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:27,001 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-11-28 05:21:27,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:21:27,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:27,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:27,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:27,206 INFO L85 PathProgramCache]: Analyzing trace with hash -91829804, now seen corresponding path program 3 times [2024-11-28 05:21:27,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:27,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420234187] [2024-11-28 05:21:27,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:21:27,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:27,246 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 05:21:27,246 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:27,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:27,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420234187] [2024-11-28 05:21:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420234187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287948585] [2024-11-28 05:21:27,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:21:27,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:27,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:27,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:27,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:21:27,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 05:21:27,946 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:27,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:21:27,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:28,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:21:29,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287948585] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:29,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-28 05:21:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404108272] [2024-11-28 05:21:29,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:29,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-28 05:21:29,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:29,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-28 05:21:29,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 05:21:29,045 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:29,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:29,562 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2024-11-28 05:21:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 05:21:29,563 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-28 05:21:29,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:29,565 INFO L225 Difference]: With dead ends: 144 [2024-11-28 05:21:29,565 INFO L226 Difference]: Without dead ends: 143 [2024-11-28 05:21:29,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1045, Invalid=2495, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 05:21:29,568 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 378 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:29,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 303 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:21:29,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-28 05:21:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2024-11-28 05:21:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.102803738317757) internal successors, (118), 105 states have internal predecessors, (118), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2024-11-28 05:21:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 146 transitions. [2024-11-28 05:21:29,587 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 146 transitions. Word has length 56 [2024-11-28 05:21:29,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:29,588 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 146 transitions. [2024-11-28 05:21:29,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 146 transitions. [2024-11-28 05:21:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 05:21:29,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:29,591 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 05:21:29,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:21:29,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:29,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:29,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:29,797 INFO L85 PathProgramCache]: Analyzing trace with hash -950608329, now seen corresponding path program 2 times [2024-11-28 05:21:29,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:29,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275721243] [2024-11-28 05:21:29,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:21:29,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:29,835 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:21:29,835 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 05:21:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275721243] [2024-11-28 05:21:30,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275721243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634567449] [2024-11-28 05:21:30,038 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:21:30,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:30,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:30,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:21:30,104 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:21:30,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:30,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:21:30,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:30,170 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 05:21:30,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 05:21:30,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634567449] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:30,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:30,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-28 05:21:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734754294] [2024-11-28 05:21:30,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:30,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:21:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:30,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:21:30,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:21:30,478 INFO L87 Difference]: Start difference. First operand 133 states and 146 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 05:21:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:30,558 INFO L93 Difference]: Finished difference Result 236 states and 274 transitions. [2024-11-28 05:21:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:21:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 70 [2024-11-28 05:21:30,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:30,561 INFO L225 Difference]: With dead ends: 236 [2024-11-28 05:21:30,561 INFO L226 Difference]: Without dead ends: 235 [2024-11-28 05:21:30,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:21:30,562 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:30,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:21:30,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-28 05:21:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2024-11-28 05:21:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 191 states have (on average 1.057591623036649) internal successors, (202), 185 states have internal predecessors, (202), 12 states have call successors, (12), 11 states have call predecessors, (12), 31 states have return successors, (38), 38 states have call predecessors, (38), 11 states have call successors, (38) [2024-11-28 05:21:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2024-11-28 05:21:30,616 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 70 [2024-11-28 05:21:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:30,617 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2024-11-28 05:21:30,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 05:21:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2024-11-28 05:21:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 05:21:30,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:30,626 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2024-11-28 05:21:30,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:21:30,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:30,827 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:30,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash -808857225, now seen corresponding path program 3 times [2024-11-28 05:21:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:30,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222034381] [2024-11-28 05:21:30,828 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:21:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:30,852 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 05:21:30,852 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 05:21:31,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222034381] [2024-11-28 05:21:31,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222034381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556651216] [2024-11-28 05:21:31,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:21:31,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:31,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:31,203 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:31,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:21:31,288 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 05:21:31,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:31,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:21:31,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 05:21:31,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 05:21:33,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556651216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:33,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:33,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-11-28 05:21:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213737770] [2024-11-28 05:21:33,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:33,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 05:21:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:33,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 05:21:33,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:21:33,754 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 05:21:33,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:33,956 INFO L93 Difference]: Finished difference Result 630 states and 731 transitions. [2024-11-28 05:21:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 05:21:33,957 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 90 [2024-11-28 05:21:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:33,961 INFO L225 Difference]: With dead ends: 630 [2024-11-28 05:21:33,961 INFO L226 Difference]: Without dead ends: 389 [2024-11-28 05:21:33,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:21:33,964 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:33,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:21:33,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-28 05:21:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2024-11-28 05:21:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 316 states have (on average 1.0348101265822784) internal successors, (327), 307 states have internal predecessors, (327), 12 states have call successors, (12), 11 states have call predecessors, (12), 60 states have return successors, (70), 70 states have call predecessors, (70), 11 states have call successors, (70) [2024-11-28 05:21:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 409 transitions. [2024-11-28 05:21:34,014 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 409 transitions. Word has length 90 [2024-11-28 05:21:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:34,015 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 409 transitions. [2024-11-28 05:21:34,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 05:21:34,015 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 409 transitions. [2024-11-28 05:21:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 05:21:34,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:34,028 INFO L218 NwaCegarLoop]: trace histogram [27, 26, 26, 26, 26, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1] [2024-11-28 05:21:34,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:21:34,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 05:21:34,233 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 05:21:34,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1587491575, now seen corresponding path program 4 times [2024-11-28 05:21:34,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:34,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683001185] [2024-11-28 05:21:34,234 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:21:34,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:34,275 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:21:34,275 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 855 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-28 05:21:36,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:36,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683001185] [2024-11-28 05:21:36,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683001185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:36,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433279195] [2024-11-28 05:21:36,385 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:21:36,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:36,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:36,387 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:36,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:21:36,510 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:21:36,510 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:36,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-28 05:21:36,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:36,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 855 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-28 05:21:36,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 855 proven. 1242 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-28 05:21:57,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433279195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:57,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:57,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 57] total 83 [2024-11-28 05:21:57,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236178413] [2024-11-28 05:21:57,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:57,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-11-28 05:21:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:57,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-11-28 05:21:57,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1070, Invalid=5736, Unknown=0, NotChecked=0, Total=6806 [2024-11-28 05:21:57,529 INFO L87 Difference]: Start difference. First operand 389 states and 409 transitions. Second operand has 83 states, 81 states have (on average 2.740740740740741) internal successors, (222), 59 states have internal predecessors, (222), 41 states have call successors, (41), 25 states have call predecessors, (41), 15 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2024-11-28 05:21:58,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:58,219 INFO L93 Difference]: Finished difference Result 396 states and 431 transitions. [2024-11-28 05:21:58,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 05:21:58,221 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 81 states have (on average 2.740740740740741) internal successors, (222), 59 states have internal predecessors, (222), 41 states have call successors, (41), 25 states have call predecessors, (41), 15 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) Word has length 210 [2024-11-28 05:21:58,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:58,222 INFO L225 Difference]: With dead ends: 396 [2024-11-28 05:21:58,222 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 05:21:58,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 379 SyntacticMatches, 15 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3903 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1900, Invalid=7412, Unknown=0, NotChecked=0, Total=9312 [2024-11-28 05:21:58,227 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:58,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 104 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:21:58,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 05:21:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 05:21:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:21:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 05:21:58,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2024-11-28 05:21:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:58,228 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:21:58,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 81 states have (on average 2.740740740740741) internal successors, (222), 59 states have internal predecessors, (222), 41 states have call successors, (41), 25 states have call predecessors, (41), 15 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2024-11-28 05:21:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:21:58,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 05:21:58,232 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-28 05:21:58,233 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-28 05:21:58,233 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-28 05:21:58,233 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-28 05:21:58,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:21:58,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 05:21:58,436 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2024-11-28 05:21:58,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 05:21:59,635 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:21:59,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:21:59 BoogieIcfgContainer [2024-11-28 05:21:59,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:21:59,643 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:21:59,643 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:21:59,643 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:21:59,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:21:21" (3/4) ... [2024-11-28 05:21:59,646 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:21:59,653 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-28 05:21:59,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 05:21:59,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 05:21:59,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 05:21:59,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:21:59,732 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:21:59,732 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:21:59,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:21:59,733 INFO L158 Benchmark]: Toolchain (without parser) took 39309.94ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 92.9MB in the beginning and 116.7MB in the end (delta: -23.8MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2024-11-28 05:21:59,734 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 72.1MB in the end (delta: 85.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:21:59,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.22ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:21:59,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.87ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:21:59,735 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:21:59,735 INFO L158 Benchmark]: RCFGBuilder took 375.44ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 71.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:21:59,735 INFO L158 Benchmark]: TraceAbstraction took 38479.91ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 70.5MB in the beginning and 120.3MB in the end (delta: -49.8MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. [2024-11-28 05:21:59,736 INFO L158 Benchmark]: Witness Printer took 89.40ms. Allocated memory is still 218.1MB. Free memory was 120.3MB in the beginning and 116.7MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:21:59,738 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 was 72.1MB in the beginning and 72.1MB in the end (delta: 85.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.22ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.87ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.44ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 71.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 38479.91ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 70.5MB in the beginning and 120.3MB in the end (delta: -49.8MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. * Witness Printer took 89.40ms. Allocated memory is still 218.1MB. Free memory was 120.3MB in the beginning and 116.7MB in the end (delta: 3.6MB). 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 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 37.2s, OverallIterations: 11, TraceHistogramMax: 27, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 997 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 991 mSDsluCounter, 1521 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1285 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1783 IncrementalHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 236 mSDtfsCounter, 1783 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 883 SyntacticMatches, 17 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5431 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=10, InterpolantAutomatonStates: 177, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 30.9s InterpolantComputationTime, 1062 NumberOfCodeBlocks, 826 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 1540 ConstructedInterpolants, 0 QuantifiedInterpolants, 4128 SizeOfPredicates, 49 NumberOfNonLiveVariables, 859 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 5197/9553 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 05:21:59,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_755991e0-b400-4bb9-96f2-8187d3f82546/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 Result: TRUE