./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/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_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/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_11df1a03-c8b3-4e86-881d-e67a58125ebc/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 da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:00:34,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:00:35,002 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 05:00:35,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:00:35,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:00:35,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:00:35,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:00:35,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:00:35,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:00:35,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:00:35,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:00:35,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:00:35,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:00:35,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:00:35,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:00:35,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:00:35,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:00:35,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:00:35,058 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:00:35,058 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:00:35,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:00:35,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:00:35,058 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:00:35,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:00:35,058 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:00:35,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:00:35,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:00:35,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:00:35,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:35,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:00:35,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:00:35,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:00:35,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:00:35,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:35,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:00:35,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:00:35,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:00:35,061 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_11df1a03-c8b3-4e86-881d-e67a58125ebc/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 -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2024-11-28 05:00:35,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:00:35,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:00:35,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:00:35,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:00:35,407 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:00:35,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2024-11-28 05:00:38,444 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/a508283ba/23edef49592741dca5e43fb0bb323ee0/FLAG32e9a489a [2024-11-28 05:00:38,743 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:00:38,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2024-11-28 05:00:38,756 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/a508283ba/23edef49592741dca5e43fb0bb323ee0/FLAG32e9a489a [2024-11-28 05:00:38,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/a508283ba/23edef49592741dca5e43fb0bb323ee0 [2024-11-28 05:00:38,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:00:38,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:00:38,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:00:38,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:00:38,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:00:38,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:00:38" (1/1) ... [2024-11-28 05:00:38,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a79086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:38, skipping insertion in model container [2024-11-28 05:00:38,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:00:38" (1/1) ... [2024-11-28 05:00:38,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:00:39,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:00:39,118 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:00:39,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:00:39,181 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:00:39,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39 WrapperNode [2024-11-28 05:00:39,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:00:39,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:00:39,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:00:39,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:00:39,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,245 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 162 [2024-11-28 05:00:39,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:00:39,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:00:39,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:00:39,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:00:39,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,276 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 05:00:39,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:00:39,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:00:39,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:00:39,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:00:39,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (1/1) ... [2024-11-28 05:00:39,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:39,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:39,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:00:39,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:00:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:00:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:00:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-28 05:00:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-28 05:00:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:00:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:00:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-28 05:00:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-28 05:00:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:00:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:00:39,488 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:00:39,490 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:00:40,093 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2024-11-28 05:00:40,093 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:00:40,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:00:40,113 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 05:00:40,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:40 BoogieIcfgContainer [2024-11-28 05:00:40,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:00:40,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:00:40,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:00:40,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:00:40,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:00:38" (1/3) ... [2024-11-28 05:00:40,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b81bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:00:40, skipping insertion in model container [2024-11-28 05:00:40,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:39" (2/3) ... [2024-11-28 05:00:40,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b81bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:00:40, skipping insertion in model container [2024-11-28 05:00:40,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:40" (3/3) ... [2024-11-28 05:00:40,130 INFO L128 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2024-11-28 05:00:40,147 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:00:40,149 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG soft_float_4-2.c.cil.c that has 4 procedures, 120 locations, 1 initial locations, 2 loop locations, and 22 error locations. [2024-11-28 05:00:40,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:00:40,247 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;@4537b876, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:00:40,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-28 05:00:40,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 86 states have (on average 1.627906976744186) internal successors, (140), 108 states have internal predecessors, (140), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:00:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 05:00:40,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:40,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:40,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:40,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:40,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1140332824, now seen corresponding path program 1 times [2024-11-28 05:00:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:40,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931161034] [2024-11-28 05:00:40,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:40,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:40,590 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 05:00:40,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:40,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931161034] [2024-11-28 05:00:40,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931161034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:40,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:40,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:40,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413204842] [2024-11-28 05:00:40,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:40,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:40,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:40,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:40,622 INFO L87 Difference]: Start difference. First operand has 120 states, 86 states have (on average 1.627906976744186) internal successors, (140), 108 states have internal predecessors, (140), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:40,839 INFO L93 Difference]: Finished difference Result 287 states and 401 transitions. [2024-11-28 05:00:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:40,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 05:00:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:40,855 INFO L225 Difference]: With dead ends: 287 [2024-11-28 05:00:40,855 INFO L226 Difference]: Without dead ends: 160 [2024-11-28 05:00:40,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:40,864 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 85 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:40,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 382 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:40,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-28 05:00:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 148. [2024-11-28 05:00:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.5210084033613445) internal successors, (181), 137 states have internal predecessors, (181), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 194 transitions. [2024-11-28 05:00:40,932 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 194 transitions. Word has length 8 [2024-11-28 05:00:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:40,932 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 194 transitions. [2024-11-28 05:00:40,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 194 transitions. [2024-11-28 05:00:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 05:00:40,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:40,934 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:40,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:00:40,934 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:40,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:40,939 INFO L85 PathProgramCache]: Analyzing trace with hash -374362723, now seen corresponding path program 1 times [2024-11-28 05:00:40,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:40,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826928240] [2024-11-28 05:00:40,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:40,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:00:41,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:41,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826928240] [2024-11-28 05:00:41,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826928240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:41,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:41,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:00:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900912418] [2024-11-28 05:00:41,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:41,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:41,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:41,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:41,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:41,078 INFO L87 Difference]: Start difference. First operand 148 states and 194 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:41,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:41,158 INFO L93 Difference]: Finished difference Result 148 states and 194 transitions. [2024-11-28 05:00:41,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:41,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 05:00:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:41,164 INFO L225 Difference]: With dead ends: 148 [2024-11-28 05:00:41,164 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 05:00:41,164 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 05:00:41,165 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:41,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 228 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:41,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 05:00:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-28 05:00:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 119 states have (on average 1.504201680672269) internal successors, (179), 136 states have internal predecessors, (179), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 192 transitions. [2024-11-28 05:00:41,193 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 192 transitions. Word has length 12 [2024-11-28 05:00:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:41,193 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 192 transitions. [2024-11-28 05:00:41,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 192 transitions. [2024-11-28 05:00:41,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 05:00:41,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:41,195 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:41,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:00:41,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:41,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:41,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1085633619, now seen corresponding path program 1 times [2024-11-28 05:00:41,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:41,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708928612] [2024-11-28 05:00:41,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:41,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:41,388 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 05:00:41,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:41,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708928612] [2024-11-28 05:00:41,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708928612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:41,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472548960] [2024-11-28 05:00:41,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:41,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:41,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:41,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:41,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:00:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:41,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:00:41,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:41,542 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:41,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472548960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:41,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:00:41,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 05:00:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656318695] [2024-11-28 05:00:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:41,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:41,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:41,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:41,544 INFO L87 Difference]: Start difference. First operand 147 states and 192 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:41,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:41,705 INFO L93 Difference]: Finished difference Result 175 states and 238 transitions. [2024-11-28 05:00:41,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:41,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 05:00:41,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:41,707 INFO L225 Difference]: With dead ends: 175 [2024-11-28 05:00:41,708 INFO L226 Difference]: Without dead ends: 173 [2024-11-28 05:00:41,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:41,711 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 25 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:41,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 333 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-28 05:00:41,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 155. [2024-11-28 05:00:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 127 states have (on average 1.4881889763779528) internal successors, (189), 144 states have internal predecessors, (189), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 202 transitions. [2024-11-28 05:00:41,742 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 202 transitions. Word has length 13 [2024-11-28 05:00:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:41,743 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 202 transitions. [2024-11-28 05:00:41,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 202 transitions. [2024-11-28 05:00:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 05:00:41,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:41,744 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:41,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:00:41,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:41,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:41,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1279657530, now seen corresponding path program 1 times [2024-11-28 05:00:41,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:41,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684847696] [2024-11-28 05:00:41,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,072 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 05:00:42,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:42,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684847696] [2024-11-28 05:00:42,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684847696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:42,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159814557] [2024-11-28 05:00:42,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:42,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:42,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:42,075 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:42,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:00:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:00:42,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:42,147 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159814557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:00:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-28 05:00:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819089376] [2024-11-28 05:00:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:42,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:42,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:42,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:42,149 INFO L87 Difference]: Start difference. First operand 155 states and 202 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:42,225 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2024-11-28 05:00:42,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:42,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 05:00:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:42,227 INFO L225 Difference]: With dead ends: 160 [2024-11-28 05:00:42,227 INFO L226 Difference]: Without dead ends: 159 [2024-11-28 05:00:42,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:42,228 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 16 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:42,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 219 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:42,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-28 05:00:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2024-11-28 05:00:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 128 states have (on average 1.484375) internal successors, (190), 145 states have internal predecessors, (190), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 203 transitions. [2024-11-28 05:00:42,253 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 203 transitions. Word has length 13 [2024-11-28 05:00:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:42,254 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 203 transitions. [2024-11-28 05:00:42,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 203 transitions. [2024-11-28 05:00:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:00:42,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:42,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:42,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:00:42,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:42,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:42,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:42,456 INFO L85 PathProgramCache]: Analyzing trace with hash -696413272, now seen corresponding path program 1 times [2024-11-28 05:00:42,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:42,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075969157] [2024-11-28 05:00:42,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,515 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 05:00:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:42,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075969157] [2024-11-28 05:00:42,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075969157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:42,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:42,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:42,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805857640] [2024-11-28 05:00:42,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:42,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:42,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:42,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:42,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:42,518 INFO L87 Difference]: Start difference. First operand 156 states and 203 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:42,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:42,623 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2024-11-28 05:00:42,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:42,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 05:00:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:42,625 INFO L225 Difference]: With dead ends: 297 [2024-11-28 05:00:42,625 INFO L226 Difference]: Without dead ends: 166 [2024-11-28 05:00:42,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:42,626 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 16 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:42,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 227 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:42,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-28 05:00:42,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 158. [2024-11-28 05:00:42,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 147 states have internal predecessors, (190), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:42,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 203 transitions. [2024-11-28 05:00:42,656 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 203 transitions. Word has length 14 [2024-11-28 05:00:42,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:42,656 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 203 transitions. [2024-11-28 05:00:42,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:42,656 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 203 transitions. [2024-11-28 05:00:42,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:00:42,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:42,657 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:42,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:00:42,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:42,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:42,658 INFO L85 PathProgramCache]: Analyzing trace with hash -705096090, now seen corresponding path program 1 times [2024-11-28 05:00:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:42,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857358380] [2024-11-28 05:00:42,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:42,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:00:42,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:42,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857358380] [2024-11-28 05:00:42,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857358380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:42,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:42,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:00:42,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557861186] [2024-11-28 05:00:42,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:42,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:42,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:42,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:42,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:42,704 INFO L87 Difference]: Start difference. First operand 158 states and 203 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:42,766 INFO L93 Difference]: Finished difference Result 158 states and 203 transitions. [2024-11-28 05:00:42,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:42,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 05:00:42,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:42,768 INFO L225 Difference]: With dead ends: 158 [2024-11-28 05:00:42,770 INFO L226 Difference]: Without dead ends: 157 [2024-11-28 05:00:42,771 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 05:00:42,772 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 2 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:42,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 222 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:00:42,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-28 05:00:42,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2024-11-28 05:00:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 128 states have (on average 1.453125) internal successors, (186), 144 states have internal predecessors, (186), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:42,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 199 transitions. [2024-11-28 05:00:42,786 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 199 transitions. Word has length 14 [2024-11-28 05:00:42,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:42,787 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 199 transitions. [2024-11-28 05:00:42,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 199 transitions. [2024-11-28 05:00:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 05:00:42,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:42,788 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:42,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:00:42,789 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:42,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1659339576, now seen corresponding path program 1 times [2024-11-28 05:00:42,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:42,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994153006] [2024-11-28 05:00:42,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:42,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:42,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:42,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994153006] [2024-11-28 05:00:42,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994153006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:42,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:42,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:42,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365495970] [2024-11-28 05:00:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:42,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:42,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:42,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:42,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:42,858 INFO L87 Difference]: Start difference. First operand 155 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:43,029 INFO L93 Difference]: Finished difference Result 219 states and 282 transitions. [2024-11-28 05:00:43,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:43,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-28 05:00:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:43,032 INFO L225 Difference]: With dead ends: 219 [2024-11-28 05:00:43,033 INFO L226 Difference]: Without dead ends: 215 [2024-11-28 05:00:43,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:43,034 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 81 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:43,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 411 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-28 05:00:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2024-11-28 05:00:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 172 states have (on average 1.441860465116279) internal successors, (248), 187 states have internal predecessors, (248), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:43,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 261 transitions. [2024-11-28 05:00:43,056 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 261 transitions. Word has length 16 [2024-11-28 05:00:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:43,056 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 261 transitions. [2024-11-28 05:00:43,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 261 transitions. [2024-11-28 05:00:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 05:00:43,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:43,058 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:43,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:00:43,059 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:43,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:43,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1658479418, now seen corresponding path program 1 times [2024-11-28 05:00:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:43,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669073225] [2024-11-28 05:00:43,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:43,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:43,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:43,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669073225] [2024-11-28 05:00:43,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669073225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:43,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:43,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894497191] [2024-11-28 05:00:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:43,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:43,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:43,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:43,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:43,133 INFO L87 Difference]: Start difference. First operand 199 states and 261 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:43,287 INFO L93 Difference]: Finished difference Result 221 states and 283 transitions. [2024-11-28 05:00:43,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:43,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-28 05:00:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:43,289 INFO L225 Difference]: With dead ends: 221 [2024-11-28 05:00:43,290 INFO L226 Difference]: Without dead ends: 219 [2024-11-28 05:00:43,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:43,291 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 81 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:43,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 416 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:43,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-28 05:00:43,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 201. [2024-11-28 05:00:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 174 states have (on average 1.4195402298850575) internal successors, (247), 189 states have internal predecessors, (247), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2024-11-28 05:00:43,307 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 16 [2024-11-28 05:00:43,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:43,307 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2024-11-28 05:00:43,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2024-11-28 05:00:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 05:00:43,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:43,308 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:43,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:00:43,309 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:43,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1125039482, now seen corresponding path program 1 times [2024-11-28 05:00:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:43,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335695234] [2024-11-28 05:00:43,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:43,348 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 05:00:43,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:43,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335695234] [2024-11-28 05:00:43,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335695234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:43,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:43,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:43,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381326212] [2024-11-28 05:00:43,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:43,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:43,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:43,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:43,350 INFO L87 Difference]: Start difference. First operand 201 states and 260 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:43,418 INFO L93 Difference]: Finished difference Result 383 states and 492 transitions. [2024-11-28 05:00:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:43,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 05:00:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:43,420 INFO L225 Difference]: With dead ends: 383 [2024-11-28 05:00:43,420 INFO L226 Difference]: Without dead ends: 212 [2024-11-28 05:00:43,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:43,421 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 7 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:43,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 232 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:00:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-28 05:00:43,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 202. [2024-11-28 05:00:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 175 states have (on average 1.3885714285714286) internal successors, (243), 190 states have internal predecessors, (243), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 256 transitions. [2024-11-28 05:00:43,436 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 256 transitions. Word has length 15 [2024-11-28 05:00:43,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:43,437 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 256 transitions. [2024-11-28 05:00:43,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 256 transitions. [2024-11-28 05:00:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 05:00:43,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:43,438 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:43,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:00:43,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:43,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash -380979393, now seen corresponding path program 1 times [2024-11-28 05:00:43,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:43,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353276149] [2024-11-28 05:00:43,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:43,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:43,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:43,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353276149] [2024-11-28 05:00:43,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353276149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:43,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082913777] [2024-11-28 05:00:43,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:43,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:43,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:43,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:43,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:00:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:43,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:00:43,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:43,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:43,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082913777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:43,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:00:43,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 05:00:43,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065943065] [2024-11-28 05:00:43,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:43,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:43,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:43,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:43,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:43,606 INFO L87 Difference]: Start difference. First operand 202 states and 256 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:43,685 INFO L93 Difference]: Finished difference Result 216 states and 275 transitions. [2024-11-28 05:00:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:43,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 05:00:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:43,687 INFO L225 Difference]: With dead ends: 216 [2024-11-28 05:00:43,687 INFO L226 Difference]: Without dead ends: 215 [2024-11-28 05:00:43,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:43,688 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 12 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:43,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 231 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-28 05:00:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 201. [2024-11-28 05:00:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 174 states have (on average 1.3793103448275863) internal successors, (240), 189 states have internal predecessors, (240), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 253 transitions. [2024-11-28 05:00:43,705 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 253 transitions. Word has length 15 [2024-11-28 05:00:43,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:43,706 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 253 transitions. [2024-11-28 05:00:43,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 253 transitions. [2024-11-28 05:00:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 05:00:43,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:43,706 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:43,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:00:43,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:43,907 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:43,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1134960939, now seen corresponding path program 1 times [2024-11-28 05:00:43,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:43,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028807998] [2024-11-28 05:00:43,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:43,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:43,971 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 05:00:43,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:43,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028807998] [2024-11-28 05:00:43,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028807998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:43,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:43,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:43,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036877109] [2024-11-28 05:00:43,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:43,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:43,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:43,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:43,972 INFO L87 Difference]: Start difference. First operand 201 states and 253 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:44,031 INFO L93 Difference]: Finished difference Result 356 states and 447 transitions. [2024-11-28 05:00:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:44,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 05:00:44,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:44,033 INFO L225 Difference]: With dead ends: 356 [2024-11-28 05:00:44,033 INFO L226 Difference]: Without dead ends: 160 [2024-11-28 05:00:44,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:44,034 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 4 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:44,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 351 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:00:44,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-28 05:00:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-28 05:00:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 133 states have (on average 1.3984962406015038) internal successors, (186), 148 states have internal predecessors, (186), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 199 transitions. [2024-11-28 05:00:44,045 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 199 transitions. Word has length 16 [2024-11-28 05:00:44,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:44,045 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 199 transitions. [2024-11-28 05:00:44,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:44,045 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 199 transitions. [2024-11-28 05:00:44,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 05:00:44,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:44,046 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:44,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:00:44,046 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:44,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:44,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1135178751, now seen corresponding path program 1 times [2024-11-28 05:00:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:44,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261572774] [2024-11-28 05:00:44,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:44,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 05:00:44,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:44,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261572774] [2024-11-28 05:00:44,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261572774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:44,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:44,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:44,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689929504] [2024-11-28 05:00:44,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:44,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:44,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:44,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:44,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:44,102 INFO L87 Difference]: Start difference. First operand 160 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:44,235 INFO L93 Difference]: Finished difference Result 168 states and 206 transitions. [2024-11-28 05:00:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:44,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-28 05:00:44,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:44,237 INFO L225 Difference]: With dead ends: 168 [2024-11-28 05:00:44,237 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 05:00:44,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:44,237 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 72 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:44,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 460 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 05:00:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 158. [2024-11-28 05:00:44,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 133 states have (on average 1.3834586466165413) internal successors, (184), 146 states have internal predecessors, (184), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:44,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 197 transitions. [2024-11-28 05:00:44,249 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 197 transitions. Word has length 23 [2024-11-28 05:00:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:44,249 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 197 transitions. [2024-11-28 05:00:44,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 197 transitions. [2024-11-28 05:00:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 05:00:44,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:44,250 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:44,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:00:44,251 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:44,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1134318593, now seen corresponding path program 1 times [2024-11-28 05:00:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224941063] [2024-11-28 05:00:44,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:44,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 05:00:44,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:44,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224941063] [2024-11-28 05:00:44,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224941063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:44,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:44,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:44,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542111968] [2024-11-28 05:00:44,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:44,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:44,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:44,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:44,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:44,320 INFO L87 Difference]: Start difference. First operand 158 states and 197 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:44,452 INFO L93 Difference]: Finished difference Result 167 states and 206 transitions. [2024-11-28 05:00:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:44,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-28 05:00:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:44,453 INFO L225 Difference]: With dead ends: 167 [2024-11-28 05:00:44,453 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 05:00:44,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:44,454 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 76 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:44,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 467 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 05:00:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2024-11-28 05:00:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 125 states have (on average 1.376) internal successors, (172), 136 states have internal predecessors, (172), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2024-11-28 05:00:44,467 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 23 [2024-11-28 05:00:44,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:44,467 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2024-11-28 05:00:44,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2024-11-28 05:00:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 05:00:44,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:44,468 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:44,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:00:44,469 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:44,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1034918992, now seen corresponding path program 1 times [2024-11-28 05:00:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:44,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40941887] [2024-11-28 05:00:44,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:44,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:00:44,485 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:00:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:00:44,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:00:44,509 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:00:44,510 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-28 05:00:44,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-28 05:00:44,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-28 05:00:44,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-28 05:00:44,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-28 05:00:44,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-28 05:00:44,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-28 05:00:44,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-28 05:00:44,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-28 05:00:44,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-28 05:00:44,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-28 05:00:44,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-28 05:00:44,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-28 05:00:44,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-28 05:00:44,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-28 05:00:44,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-28 05:00:44,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-28 05:00:44,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-28 05:00:44,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-28 05:00:44,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-28 05:00:44,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-28 05:00:44,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-28 05:00:44,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:00:44,521 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:44,547 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:00:44,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:00:44 BoogieIcfgContainer [2024-11-28 05:00:44,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:00:44,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:00:44,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:00:44,555 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:00:44,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:40" (3/4) ... [2024-11-28 05:00:44,558 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:00:44,559 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:00:44,560 INFO L158 Benchmark]: Toolchain (without parser) took 5782.67ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 78.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-28 05:00:44,560 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:44,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.82ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:00:44,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.41ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:44,562 INFO L158 Benchmark]: Boogie Preprocessor took 46.52ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:44,562 INFO L158 Benchmark]: RCFGBuilder took 820.00ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 53.5MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 05:00:44,562 INFO L158 Benchmark]: TraceAbstraction took 4435.14ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 78.0MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:44,563 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 78.0MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:44,564 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.82ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.41ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.52ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 820.00ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 53.5MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4435.14ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 78.0MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 78.0MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 80. Possible FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add1 ; [L237] unsigned int r_add2 ; [L238] unsigned int zero ; [L239] int tmp ; [L240] int tmp___0 ; [L241] int __retres14 ; VAL [ea=0, eb=0] [L245] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L245] RET, EXPR base2flt(0, 0) VAL [ea=0, eb=0] [L245] zero = base2flt(0, 0) [L246] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] EXPR m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L80] m = m & ~ (1U << 24U) [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 120 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 492 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 478 mSDsluCounter, 4179 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2601 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 706 IncrementalHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 1578 mSDtfsCounter, 706 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=9, InterpolantAutomatonStates: 55, 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, 13 MinimizatonAttempts, 125 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 500 SizeOfPredicates, 0 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 35/42 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 05:00:44,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/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_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/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 da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:00:47,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:00:47,558 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-28 05:00:47,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:00:47,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:00:47,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:00:47,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:00:47,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:00:47,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:00:47,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:00:47,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:00:47,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:00:47,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:00:47,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:00:47,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:00:47,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:00:47,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:00:47,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:00:47,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:00:47,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:00:47,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:00:47,623 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:00:47,624 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:00:47,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:00:47,625 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:00:47,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:00:47,625 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:00:47,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:47,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:00:47,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:47,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:00:47,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:00:47,628 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:00:47,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:00:47,628 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:00:47,628 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:00:47,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:00:47,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:00:47,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:00:47,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:00:47,629 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_11df1a03-c8b3-4e86-881d-e67a58125ebc/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 -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2024-11-28 05:00:48,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:00:48,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:00:48,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:00:48,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:00:48,042 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:00:48,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2024-11-28 05:00:51,377 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/5913bec9b/d00e21d4d896468d85f2637bf97f709d/FLAG47425e4b0 [2024-11-28 05:00:51,708 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:00:51,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2024-11-28 05:00:51,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/5913bec9b/d00e21d4d896468d85f2637bf97f709d/FLAG47425e4b0 [2024-11-28 05:00:51,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/data/5913bec9b/d00e21d4d896468d85f2637bf97f709d [2024-11-28 05:00:51,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:00:51,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:00:51,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:00:51,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:00:51,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:00:51,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:00:51" (1/1) ... [2024-11-28 05:00:51,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdf27e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:51, skipping insertion in model container [2024-11-28 05:00:51,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:00:51" (1/1) ... [2024-11-28 05:00:51,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:00:52,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:00:52,099 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:00:52,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:00:52,196 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:00:52,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52 WrapperNode [2024-11-28 05:00:52,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:00:52,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:00:52,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:00:52,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:00:52,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,270 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2024-11-28 05:00:52,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:00:52,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:00:52,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:00:52,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:00:52,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,317 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 05:00:52,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,330 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:00:52,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:00:52,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:00:52,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:00:52,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (1/1) ... [2024-11-28 05:00:52,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:52,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:52,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:00:52,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:00:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:00:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:00:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-28 05:00:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-28 05:00:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:00:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:00:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-28 05:00:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-28 05:00:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:00:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:00:52,584 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:00:52,587 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:00:53,048 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-28 05:00:53,048 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:00:53,066 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:00:53,067 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 05:00:53,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:53 BoogieIcfgContainer [2024-11-28 05:00:53,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:00:53,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:00:53,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:00:53,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:00:53,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:00:51" (1/3) ... [2024-11-28 05:00:53,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f713ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:00:53, skipping insertion in model container [2024-11-28 05:00:53,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:52" (2/3) ... [2024-11-28 05:00:53,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f713ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:00:53, skipping insertion in model container [2024-11-28 05:00:53,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:53" (3/3) ... [2024-11-28 05:00:53,080 INFO L128 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2024-11-28 05:00:53,117 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:00:53,118 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG soft_float_4-2.c.cil.c that has 4 procedures, 95 locations, 1 initial locations, 2 loop locations, and 22 error locations. [2024-11-28 05:00:53,182 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:00:53,195 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;@1d7c9584, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:00:53,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-28 05:00:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 61 states have (on average 1.6721311475409837) internal successors, (102), 83 states have internal predecessors, (102), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:00:53,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 05:00:53,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:53,206 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:53,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:53,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1697110476, now seen corresponding path program 1 times [2024-11-28 05:00:53,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:53,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820440953] [2024-11-28 05:00:53,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:53,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:53,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:53,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:53,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:00:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:53,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:00:53,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:53,355 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 05:00:53,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:53,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:53,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820440953] [2024-11-28 05:00:53,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820440953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:53,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:53,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:53,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046933520] [2024-11-28 05:00:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:53,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:53,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:53,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:53,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:53,385 INFO L87 Difference]: Start difference. First operand has 95 states, 61 states have (on average 1.6721311475409837) internal successors, (102), 83 states have internal predecessors, (102), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:53,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:53,502 INFO L93 Difference]: Finished difference Result 182 states and 244 transitions. [2024-11-28 05:00:53,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:53,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 05:00:53,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:53,510 INFO L225 Difference]: With dead ends: 182 [2024-11-28 05:00:53,510 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 05:00:53,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:53,517 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:53,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 284 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:53,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 05:00:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-28 05:00:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 69 states have internal predecessors, (80), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:53,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2024-11-28 05:00:53,577 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 8 [2024-11-28 05:00:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:53,579 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2024-11-28 05:00:53,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2024-11-28 05:00:53,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 05:00:53,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:53,581 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:53,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:00:53,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:53,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:53,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:53,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1928790936, now seen corresponding path program 1 times [2024-11-28 05:00:53,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:53,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400018803] [2024-11-28 05:00:53,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:53,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:53,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:53,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:53,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:00:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:53,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:00:53,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:00:53,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:53,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:53,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400018803] [2024-11-28 05:00:53,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400018803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:53,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:53,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:00:53,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143038625] [2024-11-28 05:00:53,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:53,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:53,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:53,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:53,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:53,876 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 05:00:53,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:53,942 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2024-11-28 05:00:53,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:53,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 15 [2024-11-28 05:00:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:53,947 INFO L225 Difference]: With dead ends: 80 [2024-11-28 05:00:53,947 INFO L226 Difference]: Without dead ends: 79 [2024-11-28 05:00:53,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 05:00:53,949 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:53,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 155 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-28 05:00:53,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-28 05:00:53,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 68 states have internal predecessors, (79), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2024-11-28 05:00:53,966 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 15 [2024-11-28 05:00:53,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:53,966 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2024-11-28 05:00:53,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 05:00:53,966 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2024-11-28 05:00:53,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 05:00:53,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:53,967 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:53,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:00:54,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:54,168 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:54,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1831048158, now seen corresponding path program 1 times [2024-11-28 05:00:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:54,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128746462] [2024-11-28 05:00:54,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:54,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:54,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:54,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:54,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:00:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:54,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:00:54,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:54,298 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:54,298 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:54,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128746462] [2024-11-28 05:00:54,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128746462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:54,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:54,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:54,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818563323] [2024-11-28 05:00:54,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:54,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:54,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:54,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:54,300 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:54,654 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2024-11-28 05:00:54,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:54,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-28 05:00:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:54,657 INFO L225 Difference]: With dead ends: 99 [2024-11-28 05:00:54,657 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 05:00:54,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:54,659 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 61 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:54,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 184 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:00:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 05:00:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2024-11-28 05:00:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 77 states have internal predecessors, (90), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2024-11-28 05:00:54,671 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 17 [2024-11-28 05:00:54,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:54,672 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2024-11-28 05:00:54,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:54,672 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2024-11-28 05:00:54,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 05:00:54,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:54,673 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:54,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:00:54,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:54,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 05:00:54,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1624049891, now seen corresponding path program 1 times [2024-11-28 05:00:54,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344676821] [2024-11-28 05:00:54,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:54,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:54,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:54,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:54,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:00:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:00:54,932 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:00:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:00:54,982 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 05:00:54,982 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:00:54,983 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-28 05:00:54,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-28 05:00:54,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-28 05:00:54,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-28 05:00:54,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-28 05:00:54,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-28 05:00:54,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-28 05:00:54,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-28 05:00:54,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-28 05:00:54,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-28 05:00:54,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-28 05:00:54,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-28 05:00:54,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-28 05:00:54,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-28 05:00:54,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-28 05:00:54,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-28 05:00:54,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-28 05:00:54,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-28 05:00:54,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-28 05:00:54,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-28 05:00:54,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-28 05:00:54,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-28 05:00:55,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:00:55,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:55,196 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 05:00:55,226 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:00:55,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:00:55 BoogieIcfgContainer [2024-11-28 05:00:55,231 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:00:55,232 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:00:55,232 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:00:55,233 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:00:55,234 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:53" (3/4) ... [2024-11-28 05:00:55,235 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 05:00:55,283 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-11-28 05:00:55,337 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:00:55,337 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:00:55,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:00:55,342 INFO L158 Benchmark]: Toolchain (without parser) took 3588.34ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 50.4MB in the end (delta: 9.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-11-28 05:00:55,344 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:55,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.50ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 46.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:00:55,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.06ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 44.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:55,345 INFO L158 Benchmark]: Boogie Preprocessor took 82.21ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 42.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:55,346 INFO L158 Benchmark]: RCFGBuilder took 711.56ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 23.5MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:00:55,346 INFO L158 Benchmark]: TraceAbstraction took 2159.68ms. Allocated memory is still 83.9MB. Free memory was 22.9MB in the beginning and 55.1MB in the end (delta: -32.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-28 05:00:55,346 INFO L158 Benchmark]: Witness Printer took 109.18ms. Allocated memory is still 83.9MB. Free memory was 54.5MB in the beginning and 50.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:00:55,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.50ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 46.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.06ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 44.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.21ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 42.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 711.56ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 23.5MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2159.68ms. Allocated memory is still 83.9MB. Free memory was 22.9MB in the beginning and 55.1MB in the end (delta: -32.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 109.18ms. Allocated memory is still 83.9MB. Free memory was 54.5MB in the beginning and 50.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add1 ; [L237] unsigned int r_add2 ; [L238] unsigned int zero ; [L239] int tmp ; [L240] int tmp___0 ; [L241] int __retres14 ; [L245] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L245] RET, EXPR base2flt(0, 0) [L245] zero = base2flt(0, 0) [L246] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 623 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 368 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 255 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 7 QuantifiedInterpolants, 72 SizeOfPredicates, 2 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:00:55,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11df1a03-c8b3-4e86-881d-e67a58125ebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)