./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:08:25,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:08:25,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:08:25,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:08:25,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:08:25,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:08:25,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:08:25,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:08:25,415 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:08:25,415 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:08:25,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:08:25,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:08:25,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:08:25,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:08:25,418 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:08:25,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:08:25,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:08:25,419 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:08:25,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:08:25,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:08:25,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:08:25,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:08:25,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:08:25,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:08:25,422 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:08:25,423 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:08:25,423 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:08:25,423 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:08:25,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:08:25,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:08:25,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:08:25,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:08:25,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:08:25,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:08:25,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:25,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:08:25,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:08:25,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:08:25,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:08:25,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:08:25,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:08:25,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:08:25,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:08:25,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:08:25,431 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2024-10-31 22:08:25,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:08:25,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:08:25,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:08:25,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:08:25,741 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:08:25,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c Unable to find full path for "g++" [2024-10-31 22:08:27,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:08:27,995 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:08:27,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2024-10-31 22:08:28,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/data/8b6647c86/23afbe7614e44cd09c1e990eb4888987/FLAGd56b4f4e8 [2024-10-31 22:08:28,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/data/8b6647c86/23afbe7614e44cd09c1e990eb4888987 [2024-10-31 22:08:28,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:08:28,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:08:28,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:28,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:08:28,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:08:28,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a66844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28, skipping insertion in model container [2024-10-31 22:08:28,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:08:28,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:28,388 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:08:28,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:28,487 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:08:28,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28 WrapperNode [2024-10-31 22:08:28,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:28,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:28,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:08:28,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:08:28,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,534 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 166 [2024-10-31 22:08:28,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:28,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:08:28,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:08:28,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:08:28,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,566 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:08:28,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:08:28,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:08:28,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:08:28,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:08:28,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (1/1) ... [2024-10-31 22:08:28,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:28,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:28,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:08:28,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:08:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:08:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:08:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-31 22:08:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-31 22:08:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:08:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:08:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:08:28,869 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:08:28,873 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:08:29,360 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-10-31 22:08:29,360 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:08:29,383 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:08:29,386 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:08:29,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:29 BoogieIcfgContainer [2024-10-31 22:08:29,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:08:29,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:08:29,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:08:29,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:08:29,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:08:28" (1/3) ... [2024-10-31 22:08:29,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652193b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:29, skipping insertion in model container [2024-10-31 22:08:29,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:28" (2/3) ... [2024-10-31 22:08:29,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652193b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:29, skipping insertion in model container [2024-10-31 22:08:29,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:29" (3/3) ... [2024-10-31 22:08:29,425 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2024-10-31 22:08:29,445 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:08:29,445 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-31 22:08:29,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:29,522 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3879c954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:29,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-31 22:08:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 84 states have (on average 1.630952380952381) internal successors, (137), 103 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:08:29,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:08:29,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:29,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:29,536 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:29,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:29,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1257545182, now seen corresponding path program 1 times [2024-10-31 22:08:29,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:29,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324994582] [2024-10-31 22:08:29,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:29,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:29,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:29,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324994582] [2024-10-31 22:08:29,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324994582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:29,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:29,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:29,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988921827] [2024-10-31 22:08:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:29,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:08:29,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:29,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:08:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:08:29,902 INFO L87 Difference]: Start difference. First operand has 110 states, 84 states have (on average 1.630952380952381) internal successors, (137), 103 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2024-10-31 22:08:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:30,086 INFO L93 Difference]: Finished difference Result 265 states and 378 transitions. [2024-10-31 22:08:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:30,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2024-10-31 22:08:30,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:30,098 INFO L225 Difference]: With dead ends: 265 [2024-10-31 22:08:30,098 INFO L226 Difference]: Without dead ends: 135 [2024-10-31 22:08:30,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:30,105 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 85 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:30,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 359 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-31 22:08:30,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2024-10-31 22:08:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 105 states have (on average 1.4666666666666666) internal successors, (154), 118 states have internal predecessors, (154), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2024-10-31 22:08:30,156 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 9 [2024-10-31 22:08:30,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:30,157 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2024-10-31 22:08:30,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2024-10-31 22:08:30,157 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2024-10-31 22:08:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:08:30,159 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:30,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:30,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:08:30,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:30,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:30,160 INFO L85 PathProgramCache]: Analyzing trace with hash 839356190, now seen corresponding path program 1 times [2024-10-31 22:08:30,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:30,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728097551] [2024-10-31 22:08:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:30,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:30,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728097551] [2024-10-31 22:08:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728097551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:30,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:30,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:30,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850596257] [2024-10-31 22:08:30,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:30,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:30,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:30,286 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:30,366 INFO L93 Difference]: Finished difference Result 261 states and 345 transitions. [2024-10-31 22:08:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:30,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-31 22:08:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:30,369 INFO L225 Difference]: With dead ends: 261 [2024-10-31 22:08:30,373 INFO L226 Difference]: Without dead ends: 139 [2024-10-31 22:08:30,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:30,375 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 12 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:30,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 177 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-31 22:08:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 129. [2024-10-31 22:08:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 122 states have internal predecessors, (158), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:30,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2024-10-31 22:08:30,410 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 14 [2024-10-31 22:08:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:30,412 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2024-10-31 22:08:30,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2024-10-31 22:08:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:08:30,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:30,414 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:30,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:08:30,414 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:30,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 839244844, now seen corresponding path program 1 times [2024-10-31 22:08:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:30,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540775255] [2024-10-31 22:08:30,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:30,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:08:30,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:30,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540775255] [2024-10-31 22:08:30,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540775255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:30,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:30,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:30,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673199226] [2024-10-31 22:08:30,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:30,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:30,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:30,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:30,512 INFO L87 Difference]: Start difference. First operand 129 states and 166 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:30,562 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2024-10-31 22:08:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:30,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-31 22:08:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:30,564 INFO L225 Difference]: With dead ends: 129 [2024-10-31 22:08:30,568 INFO L226 Difference]: Without dead ends: 128 [2024-10-31 22:08:30,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:30,569 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 1 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:30,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 174 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-10-31 22:08:30,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-10-31 22:08:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.4311926605504588) internal successors, (156), 121 states have internal predecessors, (156), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:30,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 164 transitions. [2024-10-31 22:08:30,590 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 164 transitions. Word has length 14 [2024-10-31 22:08:30,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:30,590 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 164 transitions. [2024-10-31 22:08:30,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 164 transitions. [2024-10-31 22:08:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:08:30,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:30,592 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:30,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:08:30,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:30,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1368485488, now seen corresponding path program 1 times [2024-10-31 22:08:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:30,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418511302] [2024-10-31 22:08:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:30,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:30,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418511302] [2024-10-31 22:08:30,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418511302] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:30,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540200969] [2024-10-31 22:08:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:30,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:30,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:30,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:30,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:08:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:30,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:08:30,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:30,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:30,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540200969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:30,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:30,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-31 22:08:30,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007590927] [2024-10-31 22:08:30,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:30,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:08:30,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:30,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:08:30,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:30,932 INFO L87 Difference]: Start difference. First operand 128 states and 164 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:31,056 INFO L93 Difference]: Finished difference Result 161 states and 214 transitions. [2024-10-31 22:08:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:31,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-31 22:08:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:31,059 INFO L225 Difference]: With dead ends: 161 [2024-10-31 22:08:31,062 INFO L226 Difference]: Without dead ends: 159 [2024-10-31 22:08:31,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:31,064 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 25 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:31,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 262 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-31 22:08:31,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 135. [2024-10-31 22:08:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 128 states have internal predecessors, (163), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2024-10-31 22:08:31,088 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 15 [2024-10-31 22:08:31,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:31,093 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2024-10-31 22:08:31,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:31,093 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2024-10-31 22:08:31,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:08:31,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:31,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:31,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:08:31,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:31,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:31,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:31,297 INFO L85 PathProgramCache]: Analyzing trace with hash 246786445, now seen corresponding path program 1 times [2024-10-31 22:08:31,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:31,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654898003] [2024-10-31 22:08:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:31,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:31,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654898003] [2024-10-31 22:08:31,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654898003] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742788273] [2024-10-31 22:08:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:31,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:31,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:31,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:31,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:08:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:31,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:08:31,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:31,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:31,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742788273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:31,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:31,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-31 22:08:31,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557505139] [2024-10-31 22:08:31,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:31,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:31,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:31,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:31,547 INFO L87 Difference]: Start difference. First operand 135 states and 171 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:31,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:31,603 INFO L93 Difference]: Finished difference Result 141 states and 179 transitions. [2024-10-31 22:08:31,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:31,603 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-31 22:08:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:31,605 INFO L225 Difference]: With dead ends: 141 [2024-10-31 22:08:31,605 INFO L226 Difference]: Without dead ends: 140 [2024-10-31 22:08:31,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:31,606 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 14 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:31,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 171 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-31 22:08:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2024-10-31 22:08:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.3983050847457628) internal successors, (165), 130 states have internal predecessors, (165), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2024-10-31 22:08:31,632 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 15 [2024-10-31 22:08:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:31,632 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2024-10-31 22:08:31,633 INFO L472 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2024-10-31 22:08:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-31 22:08:31,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:31,634 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:31,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:31,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:31,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:31,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash 526622925, now seen corresponding path program 1 times [2024-10-31 22:08:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206364258] [2024-10-31 22:08:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:31,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:31,880 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:08:31,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:31,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206364258] [2024-10-31 22:08:31,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206364258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:31,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:31,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:31,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330408407] [2024-10-31 22:08:31,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:31,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:31,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:31,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:31,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:31,882 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:31,922 INFO L93 Difference]: Finished difference Result 137 states and 173 transitions. [2024-10-31 22:08:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:31,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-31 22:08:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:31,924 INFO L225 Difference]: With dead ends: 137 [2024-10-31 22:08:31,924 INFO L226 Difference]: Without dead ends: 136 [2024-10-31 22:08:31,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:31,926 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:31,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:31,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-10-31 22:08:31,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2024-10-31 22:08:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 116 states have (on average 1.3879310344827587) internal successors, (161), 127 states have internal predecessors, (161), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:31,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2024-10-31 22:08:31,944 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 16 [2024-10-31 22:08:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:31,945 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2024-10-31 22:08:31,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2024-10-31 22:08:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-31 22:08:31,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:31,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:31,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:08:31,949 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:31,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -830853339, now seen corresponding path program 1 times [2024-10-31 22:08:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823816283] [2024-10-31 22:08:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:31,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:32,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:32,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823816283] [2024-10-31 22:08:32,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823816283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:32,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:32,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:32,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784624063] [2024-10-31 22:08:32,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:32,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:32,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:32,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:32,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:32,118 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:32,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:32,275 INFO L93 Difference]: Finished difference Result 152 states and 190 transitions. [2024-10-31 22:08:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:08:32,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-31 22:08:32,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:32,278 INFO L225 Difference]: With dead ends: 152 [2024-10-31 22:08:32,278 INFO L226 Difference]: Without dead ends: 151 [2024-10-31 22:08:32,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:32,279 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 98 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:32,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 330 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:32,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-31 22:08:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2024-10-31 22:08:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 121 states have (on average 1.3801652892561984) internal successors, (167), 132 states have internal predecessors, (167), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:32,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 175 transitions. [2024-10-31 22:08:32,298 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 175 transitions. Word has length 16 [2024-10-31 22:08:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:32,299 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 175 transitions. [2024-10-31 22:08:32,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2024-10-31 22:08:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-31 22:08:32,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:32,303 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:32,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:08:32,304 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:32,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash -852395588, now seen corresponding path program 1 times [2024-10-31 22:08:32,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:32,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937040239] [2024-10-31 22:08:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:32,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:32,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:32,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937040239] [2024-10-31 22:08:32,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937040239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:32,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929450364] [2024-10-31 22:08:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:32,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:32,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:32,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:32,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:08:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:08:32,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:32,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:32,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:32,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929450364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:32,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-31 22:08:32,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45291058] [2024-10-31 22:08:32,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:32,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:08:32,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:32,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:08:32,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:32,505 INFO L87 Difference]: Start difference. First operand 139 states and 175 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:32,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:32,562 INFO L93 Difference]: Finished difference Result 151 states and 192 transitions. [2024-10-31 22:08:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:32,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2024-10-31 22:08:32,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:32,565 INFO L225 Difference]: With dead ends: 151 [2024-10-31 22:08:32,565 INFO L226 Difference]: Without dead ends: 150 [2024-10-31 22:08:32,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:32,569 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 8 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:32,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 188 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-31 22:08:32,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 139. [2024-10-31 22:08:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 121 states have (on average 1.371900826446281) internal successors, (166), 132 states have internal predecessors, (166), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 174 transitions. [2024-10-31 22:08:32,582 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 174 transitions. Word has length 17 [2024-10-31 22:08:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:32,582 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 174 transitions. [2024-10-31 22:08:32,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 174 transitions. [2024-10-31 22:08:32,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-31 22:08:32,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:32,584 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:32,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:32,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-31 22:08:32,785 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:32,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 945844369, now seen corresponding path program 1 times [2024-10-31 22:08:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187096403] [2024-10-31 22:08:32,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:32,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:08:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:32,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187096403] [2024-10-31 22:08:32,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187096403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:32,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:32,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:32,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153943080] [2024-10-31 22:08:32,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:32,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:32,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:32,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:32,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:32,900 INFO L87 Difference]: Start difference. First operand 139 states and 174 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:08:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:33,023 INFO L93 Difference]: Finished difference Result 206 states and 262 transitions. [2024-10-31 22:08:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:33,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-10-31 22:08:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:33,026 INFO L225 Difference]: With dead ends: 206 [2024-10-31 22:08:33,026 INFO L226 Difference]: Without dead ends: 204 [2024-10-31 22:08:33,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:33,028 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 120 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:33,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 269 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-31 22:08:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 177. [2024-10-31 22:08:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.379746835443038) internal successors, (218), 169 states have internal predecessors, (218), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 226 transitions. [2024-10-31 22:08:33,039 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 226 transitions. Word has length 24 [2024-10-31 22:08:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:33,040 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 226 transitions. [2024-10-31 22:08:33,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:08:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 226 transitions. [2024-10-31 22:08:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-31 22:08:33,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:33,041 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:33,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:08:33,042 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:33,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash 917217013, now seen corresponding path program 1 times [2024-10-31 22:08:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356458740] [2024-10-31 22:08:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,133 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:08:33,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:33,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356458740] [2024-10-31 22:08:33,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356458740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:33,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:33,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:33,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581186929] [2024-10-31 22:08:33,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:33,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:33,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:33,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:33,136 INFO L87 Difference]: Start difference. First operand 177 states and 226 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:08:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:33,235 INFO L93 Difference]: Finished difference Result 197 states and 251 transitions. [2024-10-31 22:08:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-10-31 22:08:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:33,237 INFO L225 Difference]: With dead ends: 197 [2024-10-31 22:08:33,238 INFO L226 Difference]: Without dead ends: 195 [2024-10-31 22:08:33,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:33,239 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 121 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:33,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 269 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-31 22:08:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 168. [2024-10-31 22:08:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 149 states have (on average 1.3758389261744965) internal successors, (205), 160 states have internal predecessors, (205), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 213 transitions. [2024-10-31 22:08:33,255 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 213 transitions. Word has length 24 [2024-10-31 22:08:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:33,255 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 213 transitions. [2024-10-31 22:08:33,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:08:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 213 transitions. [2024-10-31 22:08:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:08:33,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:33,257 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:33,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:08:33,258 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:33,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash -666771020, now seen corresponding path program 1 times [2024-10-31 22:08:33,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:33,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019501432] [2024-10-31 22:08:33,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:33,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:08:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-31 22:08:33,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:33,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019501432] [2024-10-31 22:08:33,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019501432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:33,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:33,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:33,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885522221] [2024-10-31 22:08:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:33,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:33,349 INFO L87 Difference]: Start difference. First operand 168 states and 213 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:08:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:33,458 INFO L93 Difference]: Finished difference Result 186 states and 238 transitions. [2024-10-31 22:08:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:33,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-31 22:08:33,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:33,460 INFO L225 Difference]: With dead ends: 186 [2024-10-31 22:08:33,460 INFO L226 Difference]: Without dead ends: 184 [2024-10-31 22:08:33,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:33,461 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 119 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:33,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 262 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:33,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-31 22:08:33,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 159. [2024-10-31 22:08:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 142 states have (on average 1.3661971830985915) internal successors, (194), 151 states have internal predecessors, (194), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 202 transitions. [2024-10-31 22:08:33,477 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 202 transitions. Word has length 31 [2024-10-31 22:08:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:33,477 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 202 transitions. [2024-10-31 22:08:33,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:08:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 202 transitions. [2024-10-31 22:08:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:08:33,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:33,479 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:33,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:08:33,480 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:33,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash -695398376, now seen corresponding path program 1 times [2024-10-31 22:08:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:33,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579642987] [2024-10-31 22:08:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:08:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-31 22:08:33,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:33,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579642987] [2024-10-31 22:08:33,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579642987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:33,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:33,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:33,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320689212] [2024-10-31 22:08:33,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:33,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:33,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:33,567 INFO L87 Difference]: Start difference. First operand 159 states and 202 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:08:33,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:33,664 INFO L93 Difference]: Finished difference Result 177 states and 227 transitions. [2024-10-31 22:08:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:33,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-31 22:08:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:33,666 INFO L225 Difference]: With dead ends: 177 [2024-10-31 22:08:33,666 INFO L226 Difference]: Without dead ends: 175 [2024-10-31 22:08:33,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:33,667 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 120 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:33,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 260 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:33,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-31 22:08:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 148. [2024-10-31 22:08:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 133 states have (on average 1.3609022556390977) internal successors, (181), 140 states have internal predecessors, (181), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 189 transitions. [2024-10-31 22:08:33,679 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 189 transitions. Word has length 31 [2024-10-31 22:08:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:33,680 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 189 transitions. [2024-10-31 22:08:33,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:08:33,681 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 189 transitions. [2024-10-31 22:08:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:08:33,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:33,683 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:33,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:08:33,683 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:33,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1289620853, now seen corresponding path program 1 times [2024-10-31 22:08:33,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:33,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855842793] [2024-10-31 22:08:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:33,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:08:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:08:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:33,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855842793] [2024-10-31 22:08:33,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855842793] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:33,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212299790] [2024-10-31 22:08:33,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:33,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:33,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:33,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:33,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:08:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:33,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:08:33,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:08:33,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:33,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212299790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:33,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:33,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-31 22:08:33,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529900759] [2024-10-31 22:08:33,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:33,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:08:33,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:33,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:08:33,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:33,942 INFO L87 Difference]: Start difference. First operand 148 states and 189 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:34,051 INFO L93 Difference]: Finished difference Result 334 states and 423 transitions. [2024-10-31 22:08:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:08:34,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-31 22:08:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:34,053 INFO L225 Difference]: With dead ends: 334 [2024-10-31 22:08:34,053 INFO L226 Difference]: Without dead ends: 189 [2024-10-31 22:08:34,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:34,054 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 18 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:34,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 226 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-10-31 22:08:34,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 153. [2024-10-31 22:08:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 137 states have (on average 1.3503649635036497) internal successors, (185), 144 states have internal predecessors, (185), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 193 transitions. [2024-10-31 22:08:34,069 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 193 transitions. Word has length 41 [2024-10-31 22:08:34,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:34,069 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 193 transitions. [2024-10-31 22:08:34,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:34,070 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 193 transitions. [2024-10-31 22:08:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-31 22:08:34,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:34,071 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:34,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:34,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:08:34,275 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:34,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:34,276 INFO L85 PathProgramCache]: Analyzing trace with hash 807728641, now seen corresponding path program 1 times [2024-10-31 22:08:34,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:34,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651906460] [2024-10-31 22:08:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:34,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:34,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:34,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:34,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 22:08:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:34,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-31 22:08:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:34,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651906460] [2024-10-31 22:08:34,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651906460] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243706894] [2024-10-31 22:08:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:34,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:34,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:34,451 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:34,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:08:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:34,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:08:34,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:08:34,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:34,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243706894] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:34,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:34,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:08:34,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783112161] [2024-10-31 22:08:34,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:34,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:08:34,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:34,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:08:34,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:08:34,761 INFO L87 Difference]: Start difference. First operand 153 states and 193 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:08:34,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:34,960 INFO L93 Difference]: Finished difference Result 469 states and 600 transitions. [2024-10-31 22:08:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:08:34,961 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 49 [2024-10-31 22:08:34,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:34,962 INFO L225 Difference]: With dead ends: 469 [2024-10-31 22:08:34,963 INFO L226 Difference]: Without dead ends: 360 [2024-10-31 22:08:34,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:08:34,964 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 155 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:34,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 327 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-10-31 22:08:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 168. [2024-10-31 22:08:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 159 states have internal predecessors, (203), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 211 transitions. [2024-10-31 22:08:34,982 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 211 transitions. Word has length 49 [2024-10-31 22:08:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:34,982 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 211 transitions. [2024-10-31 22:08:34,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:08:34,983 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 211 transitions. [2024-10-31 22:08:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:08:34,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:34,984 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:35,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:08:35,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 22:08:35,188 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:35,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2105925467, now seen corresponding path program 1 times [2024-10-31 22:08:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469576091] [2024-10-31 22:08:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:35,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:35,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:35,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:35,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:08:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:35,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:08:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:35,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469576091] [2024-10-31 22:08:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469576091] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992186784] [2024-10-31 22:08:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:35,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:35,361 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:35,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:08:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:35,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:08:35,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:08:35,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:35,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992186784] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:35,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:35,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:08:35,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534760030] [2024-10-31 22:08:35,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:35,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:08:35,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:08:35,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:08:35,621 INFO L87 Difference]: Start difference. First operand 168 states and 211 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:08:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:35,846 INFO L93 Difference]: Finished difference Result 482 states and 625 transitions. [2024-10-31 22:08:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:08:35,847 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2024-10-31 22:08:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:35,849 INFO L225 Difference]: With dead ends: 482 [2024-10-31 22:08:35,849 INFO L226 Difference]: Without dead ends: 373 [2024-10-31 22:08:35,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:08:35,850 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 138 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:35,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 432 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:08:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-10-31 22:08:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 183. [2024-10-31 22:08:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 174 states have internal predecessors, (221), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 229 transitions. [2024-10-31 22:08:35,872 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 229 transitions. Word has length 50 [2024-10-31 22:08:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:35,872 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 229 transitions. [2024-10-31 22:08:35,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:08:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 229 transitions. [2024-10-31 22:08:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-31 22:08:35,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:35,874 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:35,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:36,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-31 22:08:36,078 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:36,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:36,079 INFO L85 PathProgramCache]: Analyzing trace with hash -505466297, now seen corresponding path program 1 times [2024-10-31 22:08:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:36,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571315794] [2024-10-31 22:08:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:36,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:08:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:08:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:36,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:36,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571315794] [2024-10-31 22:08:36,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571315794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:36,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964032936] [2024-10-31 22:08:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:36,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:36,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:36,179 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:36,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:08:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:08:36,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 22:08:36,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:36,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964032936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:36,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:36,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2024-10-31 22:08:36,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682241497] [2024-10-31 22:08:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:36,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:36,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:36,286 INFO L87 Difference]: Start difference. First operand 183 states and 229 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:36,346 INFO L93 Difference]: Finished difference Result 318 states and 399 transitions. [2024-10-31 22:08:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-10-31 22:08:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:36,349 INFO L225 Difference]: With dead ends: 318 [2024-10-31 22:08:36,349 INFO L226 Difference]: Without dead ends: 200 [2024-10-31 22:08:36,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:36,350 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 7 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:36,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 166 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:36,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-10-31 22:08:36,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 188. [2024-10-31 22:08:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 172 states have (on average 1.308139534883721) internal successors, (225), 179 states have internal predecessors, (225), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2024-10-31 22:08:36,370 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 51 [2024-10-31 22:08:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:36,370 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2024-10-31 22:08:36,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2024-10-31 22:08:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-31 22:08:36,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:36,372 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:36,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:36,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 22:08:36,573 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:36,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:36,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2087473634, now seen corresponding path program 1 times [2024-10-31 22:08:36,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:36,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667139459] [2024-10-31 22:08:36,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:36,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:08:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:08:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:36,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:36,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667139459] [2024-10-31 22:08:36,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667139459] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:36,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224060768] [2024-10-31 22:08:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:36,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:36,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:36,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:36,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:08:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:36,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:08:36,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:36,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:37,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224060768] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:37,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:37,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 17 [2024-10-31 22:08:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790958128] [2024-10-31 22:08:37,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:37,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 22:08:37,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:37,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:08:37,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:08:37,052 INFO L87 Difference]: Start difference. First operand 188 states and 233 transitions. Second operand has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-31 22:08:37,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:37,477 INFO L93 Difference]: Finished difference Result 379 states and 468 transitions. [2024-10-31 22:08:37,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:08:37,477 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 52 [2024-10-31 22:08:37,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:37,479 INFO L225 Difference]: With dead ends: 379 [2024-10-31 22:08:37,479 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 22:08:37,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:08:37,480 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 37 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:37,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 973 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:08:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 22:08:37,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 155. [2024-10-31 22:08:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 139 states have (on average 1.3021582733812949) internal successors, (181), 146 states have internal predecessors, (181), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2024-10-31 22:08:37,501 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 52 [2024-10-31 22:08:37,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:37,501 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2024-10-31 22:08:37,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-31 22:08:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2024-10-31 22:08:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-31 22:08:37,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:37,502 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:37,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 22:08:37,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-31 22:08:37,706 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:37,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:37,707 INFO L85 PathProgramCache]: Analyzing trace with hash 359810950, now seen corresponding path program 1 times [2024-10-31 22:08:37,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:37,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162898522] [2024-10-31 22:08:37,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:37,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:37,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:37,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:37,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:08:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:37,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:08:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:08:37,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:37,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162898522] [2024-10-31 22:08:37,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162898522] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:37,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672320044] [2024-10-31 22:08:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:37,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:37,873 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:37,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:08:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:37,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:08:37,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 22:08:38,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:38,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672320044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:38,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:38,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-31 22:08:38,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517739743] [2024-10-31 22:08:38,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:38,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:38,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:38,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:38,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:38,034 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:38,099 INFO L93 Difference]: Finished difference Result 288 states and 352 transitions. [2024-10-31 22:08:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:38,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-10-31 22:08:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:38,101 INFO L225 Difference]: With dead ends: 288 [2024-10-31 22:08:38,101 INFO L226 Difference]: Without dead ends: 171 [2024-10-31 22:08:38,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:38,102 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 8 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:38,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 170 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-31 22:08:38,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 151. [2024-10-31 22:08:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 135 states have (on average 1.288888888888889) internal successors, (174), 142 states have internal predecessors, (174), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2024-10-31 22:08:38,118 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 58 [2024-10-31 22:08:38,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:38,119 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2024-10-31 22:08:38,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2024-10-31 22:08:38,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-31 22:08:38,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:38,120 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:38,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-31 22:08:38,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:08:38,321 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:38,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash 920145793, now seen corresponding path program 1 times [2024-10-31 22:08:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:38,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768633920] [2024-10-31 22:08:38,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:38,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:08:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:08:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:08:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:38,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768633920] [2024-10-31 22:08:38,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768633920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:38,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:38,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:38,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114858587] [2024-10-31 22:08:38,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:38,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:38,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:38,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:38,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:38,544 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:38,600 INFO L93 Difference]: Finished difference Result 199 states and 235 transitions. [2024-10-31 22:08:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2024-10-31 22:08:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:38,601 INFO L225 Difference]: With dead ends: 199 [2024-10-31 22:08:38,602 INFO L226 Difference]: Without dead ends: 154 [2024-10-31 22:08:38,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:38,603 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:38,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 444 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:38,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-31 22:08:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 151. [2024-10-31 22:08:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 135 states have (on average 1.2740740740740741) internal successors, (172), 142 states have internal predecessors, (172), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:08:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 180 transitions. [2024-10-31 22:08:38,621 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 180 transitions. Word has length 59 [2024-10-31 22:08:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:38,622 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 180 transitions. [2024-10-31 22:08:38,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 180 transitions. [2024-10-31 22:08:38,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:08:38,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:38,623 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:38,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:08:38,624 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:38,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:38,624 INFO L85 PathProgramCache]: Analyzing trace with hash 659759088, now seen corresponding path program 2 times [2024-10-31 22:08:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:38,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122413483] [2024-10-31 22:08:38,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:38,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:08:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:08:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-31 22:08:38,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:38,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122413483] [2024-10-31 22:08:38,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122413483] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:38,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351286279] [2024-10-31 22:08:38,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:08:38,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:38,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:38,872 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:38,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:08:38,941 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:08:38,941 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:08:38,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:08:38,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-31 22:08:39,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:39,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351286279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:39,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:39,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 12 [2024-10-31 22:08:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441593889] [2024-10-31 22:08:39,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:39,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:08:39,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:08:39,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:08:39,391 INFO L87 Difference]: Start difference. First operand 151 states and 180 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:39,579 INFO L93 Difference]: Finished difference Result 185 states and 218 transitions. [2024-10-31 22:08:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:08:39,580 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2024-10-31 22:08:39,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:39,581 INFO L225 Difference]: With dead ends: 185 [2024-10-31 22:08:39,581 INFO L226 Difference]: Without dead ends: 183 [2024-10-31 22:08:39,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:08:39,582 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 17 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:39,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 744 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:08:39,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-31 22:08:39,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2024-10-31 22:08:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 154 states have (on average 1.2597402597402598) internal successors, (194), 161 states have internal predecessors, (194), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-31 22:08:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 203 transitions. [2024-10-31 22:08:39,601 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 203 transitions. Word has length 63 [2024-10-31 22:08:39,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:39,601 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 203 transitions. [2024-10-31 22:08:39,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 203 transitions. [2024-10-31 22:08:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:08:39,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:39,603 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:39,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-31 22:08:39,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:39,809 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:39,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:39,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1360823666, now seen corresponding path program 1 times [2024-10-31 22:08:39,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:39,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852815499] [2024-10-31 22:08:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:39,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:39,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:39,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:39,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:08:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:39,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:08:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:08:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852815499] [2024-10-31 22:08:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852815499] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506132284] [2024-10-31 22:08:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:39,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:39,999 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:40,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:08:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:40,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-31 22:08:40,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:08:40,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:40,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506132284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:40,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:40,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 13 [2024-10-31 22:08:40,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354388890] [2024-10-31 22:08:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:40,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:08:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:40,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:08:40,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:08:40,283 INFO L87 Difference]: Start difference. First operand 171 states and 203 transitions. Second operand has 10 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:40,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:40,487 INFO L93 Difference]: Finished difference Result 272 states and 319 transitions. [2024-10-31 22:08:40,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:08:40,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2024-10-31 22:08:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:40,489 INFO L225 Difference]: With dead ends: 272 [2024-10-31 22:08:40,489 INFO L226 Difference]: Without dead ends: 234 [2024-10-31 22:08:40,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:08:40,490 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 73 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:40,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 659 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:40,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-31 22:08:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 192. [2024-10-31 22:08:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 173 states have (on average 1.2427745664739884) internal successors, (215), 180 states have internal predecessors, (215), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 228 transitions. [2024-10-31 22:08:40,510 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 228 transitions. Word has length 63 [2024-10-31 22:08:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:40,510 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 228 transitions. [2024-10-31 22:08:40,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 228 transitions. [2024-10-31 22:08:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:08:40,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:40,512 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:40,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-31 22:08:40,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:40,716 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:40,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:40,717 INFO L85 PathProgramCache]: Analyzing trace with hash -764139125, now seen corresponding path program 1 times [2024-10-31 22:08:40,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:40,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137462984] [2024-10-31 22:08:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:40,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:08:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:08:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,233 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-31 22:08:41,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:41,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137462984] [2024-10-31 22:08:41,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137462984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:41,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:41,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:41,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857122450] [2024-10-31 22:08:41,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:41,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:41,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:41,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:41,236 INFO L87 Difference]: Start difference. First operand 192 states and 228 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:41,357 INFO L93 Difference]: Finished difference Result 199 states and 238 transitions. [2024-10-31 22:08:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:08:41,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 64 [2024-10-31 22:08:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:41,359 INFO L225 Difference]: With dead ends: 199 [2024-10-31 22:08:41,359 INFO L226 Difference]: Without dead ends: 198 [2024-10-31 22:08:41,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:41,360 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 19 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:41,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 427 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:41,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-10-31 22:08:41,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 176. [2024-10-31 22:08:41,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 158 states have (on average 1.2468354430379747) internal successors, (197), 164 states have internal predecessors, (197), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 210 transitions. [2024-10-31 22:08:41,379 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 210 transitions. Word has length 64 [2024-10-31 22:08:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:41,380 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 210 transitions. [2024-10-31 22:08:41,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:41,380 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 210 transitions. [2024-10-31 22:08:41,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-31 22:08:41,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:41,381 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:41,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:08:41,381 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2081491092, now seen corresponding path program 1 times [2024-10-31 22:08:41,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:41,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446096456] [2024-10-31 22:08:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:41,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:08:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:08:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:08:41,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:41,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446096456] [2024-10-31 22:08:41,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446096456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:41,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:41,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386600834] [2024-10-31 22:08:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:41,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:08:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:41,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:08:41,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:08:41,471 INFO L87 Difference]: Start difference. First operand 176 states and 210 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:41,542 INFO L93 Difference]: Finished difference Result 176 states and 210 transitions. [2024-10-31 22:08:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:41,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2024-10-31 22:08:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:41,544 INFO L225 Difference]: With dead ends: 176 [2024-10-31 22:08:41,544 INFO L226 Difference]: Without dead ends: 173 [2024-10-31 22:08:41,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:41,545 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 29 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:41,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 198 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-31 22:08:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-10-31 22:08:41,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 158 states have (on average 1.2278481012658229) internal successors, (194), 161 states have internal predecessors, (194), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 207 transitions. [2024-10-31 22:08:41,566 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 207 transitions. Word has length 65 [2024-10-31 22:08:41,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:41,567 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 207 transitions. [2024-10-31 22:08:41,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 207 transitions. [2024-10-31 22:08:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-31 22:08:41,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:41,568 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:41,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-31 22:08:41,569 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:41,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:41,569 INFO L85 PathProgramCache]: Analyzing trace with hash 101714605, now seen corresponding path program 1 times [2024-10-31 22:08:41,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:41,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828652383] [2024-10-31 22:08:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:08:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:08:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:08:41,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:41,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828652383] [2024-10-31 22:08:41,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828652383] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:41,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544994670] [2024-10-31 22:08:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:41,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:41,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:41,763 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:41,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 22:08:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:41,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:08:41,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-31 22:08:41,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-31 22:08:42,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544994670] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:42,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:42,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 17 [2024-10-31 22:08:42,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624074114] [2024-10-31 22:08:42,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:42,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 22:08:42,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:42,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:08:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:08:42,168 INFO L87 Difference]: Start difference. First operand 173 states and 207 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-31 22:08:42,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:42,667 INFO L93 Difference]: Finished difference Result 424 states and 503 transitions. [2024-10-31 22:08:42,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:08:42,668 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 66 [2024-10-31 22:08:42,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:42,670 INFO L225 Difference]: With dead ends: 424 [2024-10-31 22:08:42,670 INFO L226 Difference]: Without dead ends: 286 [2024-10-31 22:08:42,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-10-31 22:08:42,672 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 102 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:42,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 800 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:08:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-31 22:08:42,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 183. [2024-10-31 22:08:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 168 states have (on average 1.2083333333333333) internal successors, (203), 170 states have internal predecessors, (203), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 216 transitions. [2024-10-31 22:08:42,693 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 216 transitions. Word has length 66 [2024-10-31 22:08:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:42,693 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 216 transitions. [2024-10-31 22:08:42,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-31 22:08:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 216 transitions. [2024-10-31 22:08:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-31 22:08:42,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:42,695 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:42,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-31 22:08:42,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:42,899 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:42,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:42,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1458919974, now seen corresponding path program 1 times [2024-10-31 22:08:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097249303] [2024-10-31 22:08:42,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:42,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:43,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:43,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:43,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:43,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:08:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:08:43,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097249303] [2024-10-31 22:08:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097249303] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692515487] [2024-10-31 22:08:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:43,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:43,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:43,208 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:43,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 22:08:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:43,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-31 22:08:43,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-31 22:08:43,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:43,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692515487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:43,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:43,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2024-10-31 22:08:43,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149964466] [2024-10-31 22:08:43,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:43,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:08:43,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:08:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:08:43,467 INFO L87 Difference]: Start difference. First operand 183 states and 216 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:43,696 INFO L93 Difference]: Finished difference Result 246 states and 285 transitions. [2024-10-31 22:08:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:08:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 73 [2024-10-31 22:08:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:43,698 INFO L225 Difference]: With dead ends: 246 [2024-10-31 22:08:43,699 INFO L226 Difference]: Without dead ends: 224 [2024-10-31 22:08:43,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:08:43,700 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 62 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:43,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 618 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-31 22:08:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 189. [2024-10-31 22:08:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 174 states have (on average 1.2011494252873562) internal successors, (209), 176 states have internal predecessors, (209), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 222 transitions. [2024-10-31 22:08:43,729 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 222 transitions. Word has length 73 [2024-10-31 22:08:43,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:43,730 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 222 transitions. [2024-10-31 22:08:43,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 222 transitions. [2024-10-31 22:08:43,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:08:43,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:43,732 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:43,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-31 22:08:43,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:43,933 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:43,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:43,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1157974473, now seen corresponding path program 1 times [2024-10-31 22:08:43,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:43,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283407928] [2024-10-31 22:08:43,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:43,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:44,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:44,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:44,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:44,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:08:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:08:44,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:44,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283407928] [2024-10-31 22:08:44,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283407928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:44,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152650491] [2024-10-31 22:08:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:44,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:44,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:44,265 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:44,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 22:08:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:44,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-31 22:08:44,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-31 22:08:44,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:44,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152650491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:44,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:44,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 15 [2024-10-31 22:08:44,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318174418] [2024-10-31 22:08:44,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:44,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:08:44,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:44,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:08:44,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:08:44,555 INFO L87 Difference]: Start difference. First operand 189 states and 222 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:44,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:44,804 INFO L93 Difference]: Finished difference Result 242 states and 282 transitions. [2024-10-31 22:08:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:08:44,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 75 [2024-10-31 22:08:44,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:44,806 INFO L225 Difference]: With dead ends: 242 [2024-10-31 22:08:44,806 INFO L226 Difference]: Without dead ends: 225 [2024-10-31 22:08:44,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:08:44,808 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 117 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:44,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 578 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:08:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-31 22:08:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 195. [2024-10-31 22:08:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 181 states have (on average 1.1823204419889504) internal successors, (214), 182 states have internal predecessors, (214), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 227 transitions. [2024-10-31 22:08:44,830 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 227 transitions. Word has length 75 [2024-10-31 22:08:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:44,830 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 227 transitions. [2024-10-31 22:08:44,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:08:44,831 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 227 transitions. [2024-10-31 22:08:44,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:08:44,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:44,832 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:44,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:45,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:45,033 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:45,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:45,033 INFO L85 PathProgramCache]: Analyzing trace with hash -857166616, now seen corresponding path program 1 times [2024-10-31 22:08:45,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:45,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929793468] [2024-10-31 22:08:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:45,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:45,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:45,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:45,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:45,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 22:08:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:08:45,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:45,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929793468] [2024-10-31 22:08:45,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929793468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:45,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:45,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:08:45,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697674144] [2024-10-31 22:08:45,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:45,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:08:45,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:45,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:08:45,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:08:45,570 INFO L87 Difference]: Start difference. First operand 195 states and 227 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:45,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:45,728 INFO L93 Difference]: Finished difference Result 211 states and 245 transitions. [2024-10-31 22:08:45,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:45,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2024-10-31 22:08:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:45,730 INFO L225 Difference]: With dead ends: 211 [2024-10-31 22:08:45,730 INFO L226 Difference]: Without dead ends: 210 [2024-10-31 22:08:45,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:08:45,731 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 26 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:45,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 529 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-31 22:08:45,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 195. [2024-10-31 22:08:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 181 states have (on average 1.1823204419889504) internal successors, (214), 182 states have internal predecessors, (214), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 227 transitions. [2024-10-31 22:08:45,759 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 227 transitions. Word has length 75 [2024-10-31 22:08:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:45,759 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 227 transitions. [2024-10-31 22:08:45,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 227 transitions. [2024-10-31 22:08:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:08:45,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:45,761 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:45,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-31 22:08:45,762 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:45,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1613258155, now seen corresponding path program 1 times [2024-10-31 22:08:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:45,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662104852] [2024-10-31 22:08:45,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:45,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:08:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-31 22:08:46,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:46,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662104852] [2024-10-31 22:08:46,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662104852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:46,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:46,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:46,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434735451] [2024-10-31 22:08:46,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:46,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:46,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:46,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:46,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:46,173 INFO L87 Difference]: Start difference. First operand 195 states and 227 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:46,250 INFO L93 Difference]: Finished difference Result 195 states and 227 transitions. [2024-10-31 22:08:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2024-10-31 22:08:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:46,252 INFO L225 Difference]: With dead ends: 195 [2024-10-31 22:08:46,252 INFO L226 Difference]: Without dead ends: 194 [2024-10-31 22:08:46,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:46,253 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 25 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:46,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 244 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:08:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-10-31 22:08:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 178. [2024-10-31 22:08:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 165 states have (on average 1.1757575757575758) internal successors, (194), 166 states have internal predecessors, (194), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:46,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 207 transitions. [2024-10-31 22:08:46,273 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 207 transitions. Word has length 77 [2024-10-31 22:08:46,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:46,274 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 207 transitions. [2024-10-31 22:08:46,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:46,274 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 207 transitions. [2024-10-31 22:08:46,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-31 22:08:46,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:46,275 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:46,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-31 22:08:46,276 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:46,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:46,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1258777543, now seen corresponding path program 1 times [2024-10-31 22:08:46,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:46,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961016846] [2024-10-31 22:08:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:46,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 22:08:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:46,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961016846] [2024-10-31 22:08:46,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961016846] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:46,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210755652] [2024-10-31 22:08:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:46,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:46,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:46,570 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:46,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-31 22:08:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:46,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-31 22:08:46,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:08:47,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:47,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210755652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:47,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:47,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 15 [2024-10-31 22:08:47,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052383297] [2024-10-31 22:08:47,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:47,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:08:47,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:47,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:08:47,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:08:47,047 INFO L87 Difference]: Start difference. First operand 178 states and 207 transitions. Second operand has 11 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:47,259 INFO L93 Difference]: Finished difference Result 207 states and 240 transitions. [2024-10-31 22:08:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:08:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 78 [2024-10-31 22:08:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:47,262 INFO L225 Difference]: With dead ends: 207 [2024-10-31 22:08:47,262 INFO L226 Difference]: Without dead ends: 206 [2024-10-31 22:08:47,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:08:47,263 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 16 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:47,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 732 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:08:47,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-31 22:08:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 190. [2024-10-31 22:08:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 177 states have (on average 1.1807909604519775) internal successors, (209), 177 states have internal predecessors, (209), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2024-10-31 22:08:47,282 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 78 [2024-10-31 22:08:47,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:47,283 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2024-10-31 22:08:47,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2024-10-31 22:08:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-31 22:08:47,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:47,284 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:47,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-31 22:08:47,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-31 22:08:47,485 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:47,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:47,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2025072503, now seen corresponding path program 1 times [2024-10-31 22:08:47,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:47,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874310537] [2024-10-31 22:08:47,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:47,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:47,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:47,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:47,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-31 22:08:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:47,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:47,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874310537] [2024-10-31 22:08:47,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874310537] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:47,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125489126] [2024-10-31 22:08:47,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:47,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:47,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:47,761 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:47,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 22:08:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:47,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:08:47,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:08:47,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:47,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125489126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:47,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:47,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-10-31 22:08:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456886614] [2024-10-31 22:08:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:47,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:47,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:08:47,971 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:48,071 INFO L93 Difference]: Finished difference Result 225 states and 260 transitions. [2024-10-31 22:08:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:48,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 78 [2024-10-31 22:08:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:48,074 INFO L225 Difference]: With dead ends: 225 [2024-10-31 22:08:48,074 INFO L226 Difference]: Without dead ends: 204 [2024-10-31 22:08:48,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:08:48,075 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 7 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:48,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 463 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:08:48,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-31 22:08:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 200. [2024-10-31 22:08:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 187 states have (on average 1.1764705882352942) internal successors, (220), 187 states have internal predecessors, (220), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 233 transitions. [2024-10-31 22:08:48,099 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 233 transitions. Word has length 78 [2024-10-31 22:08:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:48,100 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 233 transitions. [2024-10-31 22:08:48,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:08:48,100 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 233 transitions. [2024-10-31 22:08:48,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-31 22:08:48,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:48,101 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:48,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-31 22:08:48,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:48,302 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:48,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash -110158892, now seen corresponding path program 1 times [2024-10-31 22:08:48,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:48,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132655699] [2024-10-31 22:08:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:48,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:08:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:08:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:48,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:48,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132655699] [2024-10-31 22:08:48,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132655699] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:48,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428698627] [2024-10-31 22:08:48,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:48,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:48,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:48,590 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:48,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-31 22:08:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:48,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:08:48,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:08:49,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:49,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428698627] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:49,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:49,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 9] total 20 [2024-10-31 22:08:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947206282] [2024-10-31 22:08:49,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:49,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-31 22:08:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-31 22:08:49,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:08:49,662 INFO L87 Difference]: Start difference. First operand 200 states and 233 transitions. Second operand has 20 states, 20 states have (on average 5.9) internal successors, (118), 20 states have internal predecessors, (118), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:08:50,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:50,386 INFO L93 Difference]: Finished difference Result 524 states and 613 transitions. [2024-10-31 22:08:50,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-31 22:08:50,386 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.9) internal successors, (118), 20 states have internal predecessors, (118), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2024-10-31 22:08:50,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:50,388 INFO L225 Difference]: With dead ends: 524 [2024-10-31 22:08:50,388 INFO L226 Difference]: Without dead ends: 344 [2024-10-31 22:08:50,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2024-10-31 22:08:50,390 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 106 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:50,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 524 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:08:50,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-31 22:08:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 208. [2024-10-31 22:08:50,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 195 states have (on average 1.1641025641025642) internal successors, (227), 195 states have internal predecessors, (227), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 240 transitions. [2024-10-31 22:08:50,411 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 240 transitions. Word has length 80 [2024-10-31 22:08:50,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:50,412 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 240 transitions. [2024-10-31 22:08:50,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.9) internal successors, (118), 20 states have internal predecessors, (118), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:08:50,412 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 240 transitions. [2024-10-31 22:08:50,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-31 22:08:50,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:50,413 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:50,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-31 22:08:50,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:50,617 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:50,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash 353933701, now seen corresponding path program 1 times [2024-10-31 22:08:50,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:50,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403355554] [2024-10-31 22:08:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:50,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:50,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:50,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:50,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:08:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:50,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:08:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:50,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:50,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403355554] [2024-10-31 22:08:50,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403355554] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:50,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466295436] [2024-10-31 22:08:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:50,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:50,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:50,814 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:50,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-31 22:08:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:50,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:08:50,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:08:50,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:51,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466295436] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:51,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:51,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-10-31 22:08:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058723935] [2024-10-31 22:08:51,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:51,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-31 22:08:51,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-31 22:08:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:08:51,244 INFO L87 Difference]: Start difference. First operand 208 states and 240 transitions. Second operand has 20 states, 20 states have (on average 6.9) internal successors, (138), 20 states have internal predecessors, (138), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:08:51,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:08:51,636 INFO L93 Difference]: Finished difference Result 734 states and 875 transitions. [2024-10-31 22:08:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:08:51,637 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.9) internal successors, (138), 20 states have internal predecessors, (138), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-10-31 22:08:51,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:08:51,639 INFO L225 Difference]: With dead ends: 734 [2024-10-31 22:08:51,640 INFO L226 Difference]: Without dead ends: 576 [2024-10-31 22:08:51,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=267, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:08:51,641 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 303 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:08:51,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 562 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:08:51,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-10-31 22:08:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 230. [2024-10-31 22:08:51,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 217 states have (on average 1.1612903225806452) internal successors, (252), 217 states have internal predecessors, (252), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-31 22:08:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 265 transitions. [2024-10-31 22:08:51,667 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 265 transitions. Word has length 84 [2024-10-31 22:08:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:08:51,668 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 265 transitions. [2024-10-31 22:08:51,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.9) internal successors, (138), 20 states have internal predecessors, (138), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:08:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 265 transitions. [2024-10-31 22:08:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-31 22:08:51,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:08:51,670 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:51,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:08:51,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:51,871 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 22:08:51,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1442191316, now seen corresponding path program 2 times [2024-10-31 22:08:51,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:51,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595193319] [2024-10-31 22:08:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:51,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:08:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:08:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 22:08:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 22:08:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 93 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:08:52,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595193319] [2024-10-31 22:08:52,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595193319] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383469230] [2024-10-31 22:08:52,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:08:52,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:52,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:52,359 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:52,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf6b0b-554b-4902-b68a-9615fe66c5b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-31 22:08:52,446 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:08:52,446 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:08:52,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:08:52,449 INFO L278 TraceCheckSpWp]: Computing forward predicates...