./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:15,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:15,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:56:16,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:16,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:16,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:16,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:16,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:16,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:16,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:16,065 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:16,066 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:16,066 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:16,068 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:56:16,069 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:16,069 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:16,070 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:56:16,070 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:56:16,071 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:16,072 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:56:16,072 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:56:16,073 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:56:16,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:16,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:16,075 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:56:16,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:56:16,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:56:16,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:16,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:16,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:16,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:16,078 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:56:16,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:56:16,078 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:56:16,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:16,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:16,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:16,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:16,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:16,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:16,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:16,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:16,081 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:56:16,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:56:16,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:16,082 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:16,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:16,083 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 [2023-11-12 00:56:16,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:16,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:16,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:16,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:16,414 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:16,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-11-12 00:56:19,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:19,820 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:19,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-11-12 00:56:19,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data/a146c9f3d/8d325257bcf6417f95884e4f0d275487/FLAGb9dc6e1c6 [2023-11-12 00:56:19,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data/a146c9f3d/8d325257bcf6417f95884e4f0d275487 [2023-11-12 00:56:19,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:19,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:19,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:19,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:19,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:19,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:19" (1/1) ... [2023-11-12 00:56:19,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59895243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:19, skipping insertion in model container [2023-11-12 00:56:19,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:19" (1/1) ... [2023-11-12 00:56:19,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:20,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:20,185 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:20,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:20,254 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:20,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20 WrapperNode [2023-11-12 00:56:20,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:20,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:20,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:20,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:20,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,325 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 209 [2023-11-12 00:56:20,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:20,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:20,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:20,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:20,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:20,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:20,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:20,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:20,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (1/1) ... [2023-11-12 00:56:20,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:20,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:20,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:20,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-12 00:56:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-12 00:56:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:56:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:56:20,562 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:20,565 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:21,132 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:21,370 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:21,371 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:56:21,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:21 BoogieIcfgContainer [2023-11-12 00:56:21,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:21,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:21,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:21,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:21,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:19" (1/3) ... [2023-11-12 00:56:21,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6161ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:21, skipping insertion in model container [2023-11-12 00:56:21,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:20" (2/3) ... [2023-11-12 00:56:21,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6161ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:21, skipping insertion in model container [2023-11-12 00:56:21,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:21" (3/3) ... [2023-11-12 00:56:21,388 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2023-11-12 00:56:21,411 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:21,411 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 00:56:21,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:21,489 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@7b5cd390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:21,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-12 00:56:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 51 states have (on average 1.7450980392156863) internal successors, (89), 75 states have internal predecessors, (89), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:56:21,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:56:21,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:21,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:21,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:21,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash -604429648, now seen corresponding path program 1 times [2023-11-12 00:56:21,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:21,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733758688] [2023-11-12 00:56:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:21,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:21,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733758688] [2023-11-12 00:56:21,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733758688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:21,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:21,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:21,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318728203] [2023-11-12 00:56:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:21,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:56:21,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:21,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:56:21,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:21,800 INFO L87 Difference]: Start difference. First operand has 84 states, 51 states have (on average 1.7450980392156863) internal successors, (89), 75 states have internal predecessors, (89), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2023-11-12 00:56:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:21,944 INFO L93 Difference]: Finished difference Result 162 states and 210 transitions. [2023-11-12 00:56:21,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:56:21,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2023-11-12 00:56:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:21,959 INFO L225 Difference]: With dead ends: 162 [2023-11-12 00:56:21,960 INFO L226 Difference]: Without dead ends: 68 [2023-11-12 00:56:21,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:21,972 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:21,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:21,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-12 00:56:22,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-12 00:56:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 43 states have (on average 1.558139534883721) internal successors, (67), 60 states have internal predecessors, (67), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2023-11-12 00:56:22,032 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 8 [2023-11-12 00:56:22,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:22,032 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2023-11-12 00:56:22,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2023-11-12 00:56:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2023-11-12 00:56:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:56:22,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:22,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:22,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:56:22,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:22,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash -605700517, now seen corresponding path program 1 times [2023-11-12 00:56:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:22,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134770213] [2023-11-12 00:56:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:22,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:22,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:22,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134770213] [2023-11-12 00:56:22,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134770213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:22,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:22,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:56:22,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453658018] [2023-11-12 00:56:22,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:22,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:22,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:22,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:22,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:22,197 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. 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) [2023-11-12 00:56:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:22,408 INFO L93 Difference]: Finished difference Result 182 states and 216 transitions. [2023-11-12 00:56:22,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:22,409 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 [2023-11-12 00:56:22,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:22,415 INFO L225 Difference]: With dead ends: 182 [2023-11-12 00:56:22,415 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 00:56:22,425 INFO L412 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 [2023-11-12 00:56:22,426 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 67 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:22,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 160 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:22,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 00:56:22,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 104. [2023-11-12 00:56:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.5128205128205128) internal successors, (118), 95 states have internal predecessors, (118), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2023-11-12 00:56:22,452 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 8 [2023-11-12 00:56:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:22,453 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2023-11-12 00:56:22,453 INFO L496 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) [2023-11-12 00:56:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2023-11-12 00:56:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:56:22,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:22,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:22,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:56:22,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:22,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:22,456 INFO L85 PathProgramCache]: Analyzing trace with hash -604757030, now seen corresponding path program 1 times [2023-11-12 00:56:22,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:22,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098666649] [2023-11-12 00:56:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:22,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098666649] [2023-11-12 00:56:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098666649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:22,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:22,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964641201] [2023-11-12 00:56:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:22,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:22,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:22,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:22,598 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-12 00:56:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:22,820 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2023-11-12 00:56:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:22,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2023-11-12 00:56:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:22,822 INFO L225 Difference]: With dead ends: 198 [2023-11-12 00:56:22,823 INFO L226 Difference]: Without dead ends: 130 [2023-11-12 00:56:22,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:56:22,825 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 102 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:22,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 214 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:56:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-12 00:56:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 113. [2023-11-12 00:56:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 87 states have (on average 1.471264367816092) internal successors, (128), 104 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2023-11-12 00:56:22,843 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 12 [2023-11-12 00:56:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:22,844 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2023-11-12 00:56:22,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-12 00:56:22,844 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2023-11-12 00:56:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:56:22,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:22,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:22,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:56:22,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:22,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:22,847 INFO L85 PathProgramCache]: Analyzing trace with hash 166325044, now seen corresponding path program 1 times [2023-11-12 00:56:22,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:22,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651662147] [2023-11-12 00:56:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:22,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:22,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:22,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651662147] [2023-11-12 00:56:22,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651662147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:22,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:22,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:22,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768501686] [2023-11-12 00:56:22,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:22,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:22,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:22,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:22,886 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:56:22,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:22,945 INFO L93 Difference]: Finished difference Result 117 states and 143 transitions. [2023-11-12 00:56:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:56:22,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-12 00:56:22,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:22,947 INFO L225 Difference]: With dead ends: 117 [2023-11-12 00:56:22,948 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 00:56:22,948 INFO L412 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 [2023-11-12 00:56:22,949 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:22,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 114 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 00:56:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2023-11-12 00:56:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 102 states have internal predecessors, (125), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2023-11-12 00:56:22,960 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 14 [2023-11-12 00:56:22,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:22,961 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2023-11-12 00:56:22,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:56:22,961 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2023-11-12 00:56:22,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:56:22,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:22,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:22,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:56:22,963 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:22,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:22,964 INFO L85 PathProgramCache]: Analyzing trace with hash 632385112, now seen corresponding path program 1 times [2023-11-12 00:56:22,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:22,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816378683] [2023-11-12 00:56:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:22,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:23,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:23,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816378683] [2023-11-12 00:56:23,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816378683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:23,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:23,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:23,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584916327] [2023-11-12 00:56:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:23,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:23,067 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand has 4 states, 4 states have (on average 3.0) 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) [2023-11-12 00:56:23,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:23,163 INFO L93 Difference]: Finished difference Result 178 states and 210 transitions. [2023-11-12 00:56:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:23,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) 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 [2023-11-12 00:56:23,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:23,165 INFO L225 Difference]: With dead ends: 178 [2023-11-12 00:56:23,165 INFO L226 Difference]: Without dead ends: 71 [2023-11-12 00:56:23,165 INFO L412 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 [2023-11-12 00:56:23,166 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 5 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:23,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 178 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:23,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-12 00:56:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-12 00:56:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 46 states have (on average 1.5) internal successors, (69), 62 states have internal predecessors, (69), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2023-11-12 00:56:23,173 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 13 [2023-11-12 00:56:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:23,173 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2023-11-12 00:56:23,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) 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) [2023-11-12 00:56:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2023-11-12 00:56:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:56:23,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:23,175 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:56:23,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:23,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:23,176 INFO L85 PathProgramCache]: Analyzing trace with hash 889736481, now seen corresponding path program 1 times [2023-11-12 00:56:23,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:23,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941492879] [2023-11-12 00:56:23,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:23,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:23,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:23,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941492879] [2023-11-12 00:56:23,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941492879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:23,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936248236] [2023-11-12 00:56:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:23,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:23,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:23,245 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:56:23,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:23,380 INFO L93 Difference]: Finished difference Result 111 states and 127 transitions. [2023-11-12 00:56:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:23,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-12 00:56:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:23,382 INFO L225 Difference]: With dead ends: 111 [2023-11-12 00:56:23,382 INFO L226 Difference]: Without dead ends: 107 [2023-11-12 00:56:23,383 INFO L412 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 [2023-11-12 00:56:23,384 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 96 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:23,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 164 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:23,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-12 00:56:23,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 95. [2023-11-12 00:56:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.5) internal successors, (105), 85 states have internal predecessors, (105), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2023-11-12 00:56:23,393 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 15 [2023-11-12 00:56:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:23,393 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2023-11-12 00:56:23,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:56:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2023-11-12 00:56:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:56:23,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:23,394 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:56:23,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:23,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash 861109125, now seen corresponding path program 1 times [2023-11-12 00:56:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44348551] [2023-11-12 00:56:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:23,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44348551] [2023-11-12 00:56:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44348551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:23,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:23,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614635125] [2023-11-12 00:56:23,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:23,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:23,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:23,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:23,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:23,460 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:56:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:23,595 INFO L93 Difference]: Finished difference Result 115 states and 132 transitions. [2023-11-12 00:56:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:23,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-12 00:56:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:23,597 INFO L225 Difference]: With dead ends: 115 [2023-11-12 00:56:23,597 INFO L226 Difference]: Without dead ends: 112 [2023-11-12 00:56:23,597 INFO L412 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 [2023-11-12 00:56:23,600 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 96 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:23,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 163 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:23,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-12 00:56:23,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 99. [2023-11-12 00:56:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 89 states have internal predecessors, (107), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 117 transitions. [2023-11-12 00:56:23,615 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 117 transitions. Word has length 15 [2023-11-12 00:56:23,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:23,615 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 117 transitions. [2023-11-12 00:56:23,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:56:23,616 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 117 transitions. [2023-11-12 00:56:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:56:23,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:23,621 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:56:23,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:23,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash -537641933, now seen corresponding path program 1 times [2023-11-12 00:56:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:23,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767610270] [2023-11-12 00:56:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:23,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:23,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767610270] [2023-11-12 00:56:23,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767610270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:23,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:23,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:56:23,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588245357] [2023-11-12 00:56:23,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:23,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:23,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:23,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:23,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:23,689 INFO L87 Difference]: Start difference. First operand 99 states and 117 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, (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) [2023-11-12 00:56:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:23,774 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2023-11-12 00:56:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:23,775 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, (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 18 [2023-11-12 00:56:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:23,776 INFO L225 Difference]: With dead ends: 117 [2023-11-12 00:56:23,776 INFO L226 Difference]: Without dead ends: 115 [2023-11-12 00:56:23,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:23,778 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 10 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:23,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 155 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-12 00:56:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 99. [2023-11-12 00:56:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 89 states have internal predecessors, (106), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 116 transitions. [2023-11-12 00:56:23,786 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 116 transitions. Word has length 18 [2023-11-12 00:56:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:23,786 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 116 transitions. [2023-11-12 00:56:23,786 INFO L496 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, (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) [2023-11-12 00:56:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 116 transitions. [2023-11-12 00:56:23,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:56:23,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:23,787 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:56:23,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:23,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:23,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1582014177, now seen corresponding path program 1 times [2023-11-12 00:56:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:23,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476416896] [2023-11-12 00:56:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:23,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:56:23,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:56:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:56:23,828 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:56:23,828 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:56:23,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-12 00:56:23,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-12 00:56:23,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-12 00:56:23,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-12 00:56:23,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-12 00:56:23,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-12 00:56:23,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-12 00:56:23,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-12 00:56:23,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-12 00:56:23,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-12 00:56:23,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-12 00:56:23,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-12 00:56:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-12 00:56:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-12 00:56:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-12 00:56:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-12 00:56:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-12 00:56:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-12 00:56:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-12 00:56:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-12 00:56:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-12 00:56:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-12 00:56:23,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:56:23,845 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:56:23,874 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated [2023-11-12 00:56:23,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:56:23 BoogieIcfgContainer [2023-11-12 00:56:23,894 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:56:23,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:56:23,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:56:23,895 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:56:23,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:21" (3/4) ... [2023-11-12 00:56:23,898 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:56:23,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:56:23,899 INFO L158 Benchmark]: Toolchain (without parser) took 4034.78ms. Allocated memory is still 144.7MB. Free memory was 101.7MB in the beginning and 57.4MB in the end (delta: 44.2MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,900 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 71.8MB in the beginning and 71.8MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:23,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.79ms. Allocated memory is still 144.7MB. Free memory was 101.3MB in the beginning and 87.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.11ms. Allocated memory is still 144.7MB. Free memory was 87.3MB in the beginning and 84.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,901 INFO L158 Benchmark]: Boogie Preprocessor took 36.28ms. Allocated memory is still 144.7MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,902 INFO L158 Benchmark]: RCFGBuilder took 1010.90ms. Allocated memory is still 144.7MB. Free memory was 83.2MB in the beginning and 66.7MB in the end (delta: 16.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,902 INFO L158 Benchmark]: TraceAbstraction took 2515.62ms. Allocated memory is still 144.7MB. Free memory was 66.0MB in the beginning and 57.4MB in the end (delta: 8.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-12 00:56:23,902 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 144.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:23,905 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 71.8MB in the beginning and 71.8MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.79ms. Allocated memory is still 144.7MB. Free memory was 101.3MB in the beginning and 87.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.11ms. Allocated memory is still 144.7MB. Free memory was 87.3MB in the beginning and 84.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.28ms. Allocated memory is still 144.7MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1010.90ms. Allocated memory is still 144.7MB. Free memory was 83.2MB in the beginning and 66.7MB in the end (delta: 16.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2515.62ms. Allocated memory is still 144.7MB. Free memory was 66.0MB in the beginning and 57.4MB in the end (delta: 8.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 144.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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_add ; [L237] unsigned int zero ; [L238] int sa ; [L239] int sb ; [L240] int tmp ; [L241] int tmp___0 ; [L242] int tmp___1 ; [L243] int tmp___2 ; [L244] int tmp___3 ; [L245] int tmp___4 ; [L246] int tmp___5 ; [L247] int tmp___6 ; [L248] int tmp___7 ; [L249] int tmp___8 ; [L250] int tmp___9 ; [L251] int __retres23 ; VAL [ea=0, eb=0] [L255] 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, m=0] [L84] return (__retres4); [L255] RET, EXPR base2flt(0, 0) VAL [ea=0, eb=0] [L255] zero = base2flt(0, 0) [L256] 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] [L61] COND TRUE 1 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) [L80] m = m & ~ (1U << 24U) [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] - 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 3 procedures, 84 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 389 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 379 mSDsluCounter, 1231 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 753 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 554 IncrementalHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 478 mSDtfsCounter, 554 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 8 MinimizatonAttempts, 75 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 8/8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:56:23,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:26,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:26,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2023-11-12 00:56:26,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:26,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:26,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:26,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:26,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:26,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:26,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:26,733 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:26,733 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:26,734 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:26,734 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:26,735 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:26,735 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:26,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:26,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:26,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:56:26,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:56:26,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:26,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:26,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:26,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:26,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:56:26,742 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:56:26,742 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:56:26,743 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:56:26,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:56:26,744 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:56:26,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:26,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:26,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:26,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:56:26,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:26,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:26,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:26,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:26,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:26,747 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:56:26,747 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:56:26,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:26,748 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:26,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:26,748 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 [2023-11-12 00:56:27,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:27,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:27,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:27,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:27,119 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:27,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-11-12 00:56:30,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:30,771 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:30,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-11-12 00:56:30,791 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data/4da070356/2d59d5c7bd354ab7abd19ed2eb5243ec/FLAGca00905ac [2023-11-12 00:56:30,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/data/4da070356/2d59d5c7bd354ab7abd19ed2eb5243ec [2023-11-12 00:56:30,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:30,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:30,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:30,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:30,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:30,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:30" (1/1) ... [2023-11-12 00:56:30,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d499c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:30, skipping insertion in model container [2023-11-12 00:56:30,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:30" (1/1) ... [2023-11-12 00:56:30,886 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:31,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:31,196 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:31,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:31,259 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:31,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31 WrapperNode [2023-11-12 00:56:31,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:31,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:31,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:31,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:31,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,308 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-11-12 00:56:31,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:31,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:31,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:31,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:31,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:31,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:31,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:31,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:31,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:31,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:31,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:31,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:56:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-12 00:56:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-12 00:56:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:56:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:56:31,536 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:31,539 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:32,034 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:32,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:32,043 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:56:32,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:32 BoogieIcfgContainer [2023-11-12 00:56:32,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:32,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:32,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:32,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:32,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:30" (1/3) ... [2023-11-12 00:56:32,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce7eee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:32, skipping insertion in model container [2023-11-12 00:56:32,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31" (2/3) ... [2023-11-12 00:56:32,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce7eee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:32, skipping insertion in model container [2023-11-12 00:56:32,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:32" (3/3) ... [2023-11-12 00:56:32,056 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2023-11-12 00:56:32,076 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:32,077 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 00:56:32,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:32,155 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@28b32eba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:32,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-12 00:56:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 82 states have (on average 1.6951219512195121) internal successors, (139), 106 states have internal predecessors, (139), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:56:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:56:32,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:32,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:32,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:32,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2031744096, now seen corresponding path program 1 times [2023-11-12 00:56:32,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:32,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184814131] [2023-11-12 00:56:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:32,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:32,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:32,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:56:32,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:56:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:32,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:56:32,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:32,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:32,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:32,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184814131] [2023-11-12 00:56:32,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184814131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:32,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:32,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:56:32,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514229319] [2023-11-12 00:56:32,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:32,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:56:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:32,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:56:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:32,384 INFO L87 Difference]: Start difference. First operand has 115 states, 82 states have (on average 1.6951219512195121) internal successors, (139), 106 states have internal predecessors, (139), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-12 00:56:32,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:32,430 INFO L93 Difference]: Finished difference Result 217 states and 313 transitions. [2023-11-12 00:56:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:56:32,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2023-11-12 00:56:32,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:32,442 INFO L225 Difference]: With dead ends: 217 [2023-11-12 00:56:32,443 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 00:56:32,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:32,451 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:32,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:32,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 00:56:32,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 00:56:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 69 states have internal predecessors, (81), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2023-11-12 00:56:32,515 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 9 [2023-11-12 00:56:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:32,516 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2023-11-12 00:56:32,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-12 00:56:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2023-11-12 00:56:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:56:32,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:32,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:32,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:32,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:32,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:32,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:32,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2030802830, now seen corresponding path program 1 times [2023-11-12 00:56:32,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:32,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729399226] [2023-11-12 00:56:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:32,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:32,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:32,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:56:32,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:56:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:32,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:56:32,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:32,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:32,836 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:32,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729399226] [2023-11-12 00:56:32,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729399226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:32,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:32,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126558696] [2023-11-12 00:56:32,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:32,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:32,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:32,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:32,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:32,846 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:56:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:32,950 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2023-11-12 00:56:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:56:32,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2023-11-12 00:56:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:32,956 INFO L225 Difference]: With dead ends: 159 [2023-11-12 00:56:32,956 INFO L226 Difference]: Without dead ends: 85 [2023-11-12 00:56:32,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:32,963 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 9 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:32,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 251 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:32,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-12 00:56:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-11-12 00:56:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 73 states have internal predecessors, (85), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:32,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2023-11-12 00:56:32,996 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 9 [2023-11-12 00:56:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:32,996 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2023-11-12 00:56:32,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:56:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2023-11-12 00:56:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:56:32,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:32,997 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:33,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-12 00:56:33,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:33,201 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:33,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:33,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1849844638, now seen corresponding path program 1 times [2023-11-12 00:56:33,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:33,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364744651] [2023-11-12 00:56:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:33,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:33,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:33,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:56:33,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 00:56:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:33,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:56:33,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:33,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:33,284 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:33,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364744651] [2023-11-12 00:56:33,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364744651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:33,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:33,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:33,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081682869] [2023-11-12 00:56:33,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:33,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:33,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:33,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:33,306 INFO L87 Difference]: Start difference. First operand 82 states and 95 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, (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) [2023-11-12 00:56:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:33,373 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2023-11-12 00:56:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:56:33,374 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, (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 16 [2023-11-12 00:56:33,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:33,376 INFO L225 Difference]: With dead ends: 85 [2023-11-12 00:56:33,377 INFO L226 Difference]: Without dead ends: 84 [2023-11-12 00:56:33,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:33,379 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:33,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 165 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-12 00:56:33,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-11-12 00:56:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 72 states have internal predecessors, (84), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:33,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2023-11-12 00:56:33,400 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 16 [2023-11-12 00:56:33,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:33,401 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2023-11-12 00:56:33,401 INFO L496 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, (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) [2023-11-12 00:56:33,401 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2023-11-12 00:56:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:56:33,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:33,403 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:33,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:33,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:33,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:33,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:33,615 INFO L85 PathProgramCache]: Analyzing trace with hash 471686470, now seen corresponding path program 1 times [2023-11-12 00:56:33,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:33,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749624209] [2023-11-12 00:56:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:33,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:33,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:33,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:56:33,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 00:56:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:33,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:56:33,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:56:33,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:33,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:33,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749624209] [2023-11-12 00:56:33,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749624209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:33,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:33,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:33,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099990119] [2023-11-12 00:56:33,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:33,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:33,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:33,678 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-12 00:56:33,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:33,718 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2023-11-12 00:56:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:56:33,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-11-12 00:56:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:33,727 INFO L225 Difference]: With dead ends: 84 [2023-11-12 00:56:33,728 INFO L226 Difference]: Without dead ends: 83 [2023-11-12 00:56:33,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:33,732 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:33,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 164 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:33,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-12 00:56:33,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2023-11-12 00:56:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.360655737704918) internal successors, (83), 71 states have internal predecessors, (83), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:33,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2023-11-12 00:56:33,756 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 18 [2023-11-12 00:56:33,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:33,756 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2023-11-12 00:56:33,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-12 00:56:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-11-12 00:56:33,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:56:33,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:33,758 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:33,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:33,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:33,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:33,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash 471753996, now seen corresponding path program 1 times [2023-11-12 00:56:33,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:33,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532221534] [2023-11-12 00:56:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:33,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:33,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:33,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:56:33,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-12 00:56:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:34,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:56:34,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:56:34,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:34,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:34,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532221534] [2023-11-12 00:56:34,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532221534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:34,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:34,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:56:34,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932776060] [2023-11-12 00:56:34,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:34,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:34,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:34,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:34,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:34,107 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 00:56:34,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:34,344 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2023-11-12 00:56:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 18 [2023-11-12 00:56:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:34,346 INFO L225 Difference]: With dead ends: 102 [2023-11-12 00:56:34,346 INFO L226 Difference]: Without dead ends: 99 [2023-11-12 00:56:34,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:34,347 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 69 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:34,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 187 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:56:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-12 00:56:34,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-11-12 00:56:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 68 states have (on average 1.338235294117647) internal successors, (91), 78 states have internal predecessors, (91), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:56:34,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2023-11-12 00:56:34,363 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 18 [2023-11-12 00:56:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:34,364 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2023-11-12 00:56:34,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 00:56:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2023-11-12 00:56:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:56:34,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:34,368 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:34,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:34,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:34,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:56:34,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 890404669, now seen corresponding path program 1 times [2023-11-12 00:56:34,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:34,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974027736] [2023-11-12 00:56:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:34,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:34,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:34,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:56:34,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-12 00:56:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:56:34,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:56:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:56:34,709 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-12 00:56:34,709 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:56:34,710 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-12 00:56:34,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-12 00:56:34,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-12 00:56:34,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-12 00:56:34,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-12 00:56:34,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-12 00:56:34,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-12 00:56:34,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-12 00:56:34,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-12 00:56:34,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-12 00:56:34,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-12 00:56:34,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-12 00:56:34,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-12 00:56:34,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-12 00:56:34,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-12 00:56:34,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-12 00:56:34,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-12 00:56:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-12 00:56:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-12 00:56:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-12 00:56:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-12 00:56:34,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-12 00:56:34,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:34,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:56:34,934 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 00:56:34,938 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:56:34,955 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-11-12 00:56:34,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:56:34 BoogieIcfgContainer [2023-11-12 00:56:34,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:56:34,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:56:34,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:56:34,968 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:56:34,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:32" (3/4) ... [2023-11-12 00:56:34,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 00:56:34,984 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-11-12 00:56:35,018 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:56:35,019 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:56:35,019 INFO L158 Benchmark]: Toolchain (without parser) took 4200.27ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 55.1MB in the beginning and 67.3MB in the end (delta: -12.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,020 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 55.4MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:35,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.54ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 40.1MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.10ms. Allocated memory is still 79.7MB. Free memory was 39.8MB in the beginning and 37.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,021 INFO L158 Benchmark]: Boogie Preprocessor took 47.43ms. Allocated memory is still 79.7MB. Free memory was 37.9MB in the beginning and 58.2MB in the end (delta: -20.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,021 INFO L158 Benchmark]: RCFGBuilder took 688.64ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 37.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,022 INFO L158 Benchmark]: TraceAbstraction took 2918.87ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 70.0MB in the end (delta: -32.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,022 INFO L158 Benchmark]: Witness Printer took 50.77ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 67.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:35,025 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 55.4MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.54ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 40.1MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.10ms. Allocated memory is still 79.7MB. Free memory was 39.8MB in the beginning and 37.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.43ms. Allocated memory is still 79.7MB. Free memory was 37.9MB in the beginning and 58.2MB in the end (delta: -20.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 688.64ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 37.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2918.87ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 70.0MB in the end (delta: -32.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 50.77ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 67.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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_add ; [L237] unsigned int zero ; [L238] int sa ; [L239] int sb ; [L240] int tmp ; [L241] int tmp___0 ; [L242] int tmp___1 ; [L243] int tmp___2 ; [L244] int tmp___3 ; [L245] int tmp___4 ; [L246] int tmp___5 ; [L247] int tmp___6 ; [L248] int tmp___7 ; [L249] int tmp___8 ; [L250] int tmp___9 ; [L251] int __retres23 ; [L255] 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, m=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L255] RET, EXPR base2flt(0, 0) [L255] zero = base2flt(0, 0) [L256] 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] [L61] COND TRUE 1 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, e=0, 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 3 procedures, 115 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 481 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 8 QuantifiedInterpolants, 110 SizeOfPredicates, 2 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-12 00:56:35,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8b85fe-3950-4a29-a912-81c1e1b7bd59/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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)