./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d69e4513fb8989bf305d8f9ce21862e8623f2a3d0c8146e8e7fb7e8c658a7eff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:32:57,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:32:57,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-28 02:32:57,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:32:57,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:32:57,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:32:57,984 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:32:57,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:32:57,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:32:57,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:32:57,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:32:57,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:32:57,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:32:57,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:32:57,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:32:57,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:32:57,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:32:57,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:32:57,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:32:57,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:32:57,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:32:57,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:32:57,989 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:32:57,989 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:32:57,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:32:57,990 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:32:57,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:32:57,990 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:32:57,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:32:57,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:32:57,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:32:57,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:32:57,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:32:57,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:32:57,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:32:57,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:32:57,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:32:57,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:32:57,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:32:57,992 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:32:57,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:32:57,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:32:57,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:32:57,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:32:57,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:32:57,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:32:57,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:32:57,993 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d69e4513fb8989bf305d8f9ce21862e8623f2a3d0c8146e8e7fb7e8c658a7eff [2024-11-28 02:32:58,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:32:58,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:32:58,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:32:58,367 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:32:58,367 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:32:58,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c [2024-11-28 02:33:01,659 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/data/7380c0423/45570e3dabc64405802713ea5f90cede/FLAG5b6d66b38 [2024-11-28 02:33:02,040 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:33:02,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c [2024-11-28 02:33:02,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/data/7380c0423/45570e3dabc64405802713ea5f90cede/FLAG5b6d66b38 [2024-11-28 02:33:02,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/data/7380c0423/45570e3dabc64405802713ea5f90cede [2024-11-28 02:33:02,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:33:02,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:33:02,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:33:02,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:33:02,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:33:02,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93f4db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02, skipping insertion in model container [2024-11-28 02:33:02,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:33:02,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:33:02,298 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:33:02,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:33:02,349 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:33:02,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02 WrapperNode [2024-11-28 02:33:02,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:33:02,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:33:02,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:33:02,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:33:02,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,395 INFO L138 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-11-28 02:33:02,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:33:02,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:33:02,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:33:02,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:33:02,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,412 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,428 INFO L175 MemorySlicer]: Split 4 memory accesses to 1 slices as follows [4]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-28 02:33:02,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:33:02,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:33:02,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:33:02,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:33:02,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (1/1) ... [2024-11-28 02:33:02,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:33:02,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:02,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:33:02,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:33:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:33:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:33:02,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:33:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:33:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:33:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:33:02,602 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:33:02,605 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:33:02,787 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-28 02:33:02,787 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:33:02,798 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:33:02,798 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:33:02,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:02 BoogieIcfgContainer [2024-11-28 02:33:02,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:33:02,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:33:02,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:33:02,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:33:02,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:33:02" (1/3) ... [2024-11-28 02:33:02,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e0b556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:02, skipping insertion in model container [2024-11-28 02:33:02,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:02" (2/3) ... [2024-11-28 02:33:02,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e0b556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:02, skipping insertion in model container [2024-11-28 02:33:02,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:02" (3/3) ... [2024-11-28 02:33:02,811 INFO L128 eAbstractionObserver]: Analyzing ICFG LexIndexValue-Array-1.c [2024-11-28 02:33:02,830 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:33:02,832 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG LexIndexValue-Array-1.c that has 1 procedures, 26 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-28 02:33:02,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:33:02,937 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;@4acb2021, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:33:02,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 02:33:02,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.631578947368421) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:33:02,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:02,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:33:02,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:02,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:02,961 INFO L85 PathProgramCache]: Analyzing trace with hash 28696806, now seen corresponding path program 1 times [2024-11-28 02:33:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:02,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687320783] [2024-11-28 02:33:02,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:03,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:03,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687320783] [2024-11-28 02:33:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687320783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:03,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:03,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:33:03,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114810113] [2024-11-28 02:33:03,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:03,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:33:03,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:03,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:33:03,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:03,311 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.631578947368421) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:03,382 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2024-11-28 02:33:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:33:03,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 02:33:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:03,389 INFO L225 Difference]: With dead ends: 50 [2024-11-28 02:33:03,389 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 02:33:03,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:03,393 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:03,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 67 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:03,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 02:33:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 02:33:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2024-11-28 02:33:03,426 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2024-11-28 02:33:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:03,427 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2024-11-28 02:33:03,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2024-11-28 02:33:03,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:33:03,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:03,428 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:33:03,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:33:03,428 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:03,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:03,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2138801440, now seen corresponding path program 1 times [2024-11-28 02:33:03,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:03,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019514441] [2024-11-28 02:33:03,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:03,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:03,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:03,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019514441] [2024-11-28 02:33:03,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019514441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:03,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652146183] [2024-11-28 02:33:03,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:03,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:03,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:03,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:03,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:33:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:03,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:33:03,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:03,812 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:33:03,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652146183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:03,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:33:03,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 02:33:03,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72424631] [2024-11-28 02:33:03,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:03,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:33:03,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:03,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:33:03,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:33:03,817 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:03,886 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2024-11-28 02:33:03,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:33:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 02:33:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:03,890 INFO L225 Difference]: With dead ends: 26 [2024-11-28 02:33:03,890 INFO L226 Difference]: Without dead ends: 25 [2024-11-28 02:33:03,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:33:03,892 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:03,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-28 02:33:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-28 02:33:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.4) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-11-28 02:33:03,903 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2024-11-28 02:33:03,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:03,904 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-11-28 02:33:03,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-11-28 02:33:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:33:03,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:03,906 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-28 02:33:03,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:33:04,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:04,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:04,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:04,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1878335154, now seen corresponding path program 1 times [2024-11-28 02:33:04,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:04,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776818342] [2024-11-28 02:33:04,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:33:04,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:04,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776818342] [2024-11-28 02:33:04,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776818342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:04,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:04,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:33:04,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918334900] [2024-11-28 02:33:04,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:04,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:33:04,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:04,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:33:04,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:04,251 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:04,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:04,278 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2024-11-28 02:33:04,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:33:04,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:33:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:04,279 INFO L225 Difference]: With dead ends: 25 [2024-11-28 02:33:04,279 INFO L226 Difference]: Without dead ends: 24 [2024-11-28 02:33:04,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:04,281 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:04,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:33:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-28 02:33:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2024-11-28 02:33:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-28 02:33:04,286 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 10 [2024-11-28 02:33:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:04,286 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-28 02:33:04,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-28 02:33:04,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:33:04,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:04,287 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:04,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:33:04,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:04,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:04,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1790631547, now seen corresponding path program 1 times [2024-11-28 02:33:04,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:04,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262871104] [2024-11-28 02:33:04,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:04,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:04,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:04,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262871104] [2024-11-28 02:33:04,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262871104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:04,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51868621] [2024-11-28 02:33:04,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:04,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:04,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:04,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:04,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:33:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:04,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:33:04,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:04,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:04,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51868621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:04,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:04,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 02:33:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403777241] [2024-11-28 02:33:04,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:04,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:33:04,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:04,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:33:04,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:33:04,718 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:04,795 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-11-28 02:33:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:33:04,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 02:33:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:04,800 INFO L225 Difference]: With dead ends: 43 [2024-11-28 02:33:04,800 INFO L226 Difference]: Without dead ends: 29 [2024-11-28 02:33:04,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:33:04,803 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:04,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 119 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-28 02:33:04,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-28 02:33:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.28) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-11-28 02:33:04,816 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 14 [2024-11-28 02:33:04,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:04,816 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-11-28 02:33:04,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2024-11-28 02:33:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 02:33:04,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:04,819 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:04,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:33:05,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:05,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:05,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash -938882553, now seen corresponding path program 2 times [2024-11-28 02:33:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:05,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749797628] [2024-11-28 02:33:05,021 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:05,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:05,046 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:33:05,046 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:33:05,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:05,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749797628] [2024-11-28 02:33:05,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749797628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:05,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:05,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:33:05,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46408757] [2024-11-28 02:33:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:05,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:33:05,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:05,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:33:05,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:05,112 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:05,145 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-11-28 02:33:05,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:33:05,146 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-28 02:33:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:05,147 INFO L225 Difference]: With dead ends: 29 [2024-11-28 02:33:05,147 INFO L226 Difference]: Without dead ends: 28 [2024-11-28 02:33:05,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:05,148 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:05,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:33:05,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-28 02:33:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-28 02:33:05,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2024-11-28 02:33:05,155 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 22 [2024-11-28 02:33:05,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:05,155 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-11-28 02:33:05,155 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-11-28 02:33:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 02:33:05,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:05,156 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:05,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:33:05,157 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:05,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:05,157 INFO L85 PathProgramCache]: Analyzing trace with hash -938882361, now seen corresponding path program 1 times [2024-11-28 02:33:05,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:05,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763963835] [2024-11-28 02:33:05,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:05,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:33:05,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:05,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763963835] [2024-11-28 02:33:05,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763963835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:05,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:05,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:33:05,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138382648] [2024-11-28 02:33:05,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:05,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:33:05,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:05,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:33:05,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:33:05,353 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:05,414 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2024-11-28 02:33:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:33:05,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-28 02:33:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:05,415 INFO L225 Difference]: With dead ends: 28 [2024-11-28 02:33:05,415 INFO L226 Difference]: Without dead ends: 27 [2024-11-28 02:33:05,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:33:05,416 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:05,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 38 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:33:05,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-28 02:33:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-28 02:33:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-11-28 02:33:05,425 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 22 [2024-11-28 02:33:05,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:05,425 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-11-28 02:33:05,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,426 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-28 02:33:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:33:05,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:05,428 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:05,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:33:05,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:05,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:05,429 INFO L85 PathProgramCache]: Analyzing trace with hash 959412003, now seen corresponding path program 1 times [2024-11-28 02:33:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:05,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137692711] [2024-11-28 02:33:05,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:33:05,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:05,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137692711] [2024-11-28 02:33:05,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137692711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:05,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:05,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:33:05,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961745828] [2024-11-28 02:33:05,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:05,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:33:05,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:05,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:33:05,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:05,538 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:05,575 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-28 02:33:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:33:05,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-28 02:33:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:05,576 INFO L225 Difference]: With dead ends: 38 [2024-11-28 02:33:05,576 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 02:33:05,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:33:05,577 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 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 [2024-11-28 02:33:05,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:33:05,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 02:33:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-28 02:33:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-11-28 02:33:05,582 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 23 [2024-11-28 02:33:05,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:05,583 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-11-28 02:33:05,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-11-28 02:33:05,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:33:05,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:05,584 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:05,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:33:05,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:05,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 959417961, now seen corresponding path program 1 times [2024-11-28 02:33:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:05,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322871314] [2024-11-28 02:33:05,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:05,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:05,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322871314] [2024-11-28 02:33:05,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322871314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:05,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15046882] [2024-11-28 02:33:05,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:05,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:05,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:05,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:05,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:33:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:05,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:33:05,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:05,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:06,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15046882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:06,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:06,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 02:33:06,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171543334] [2024-11-28 02:33:06,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:06,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:33:06,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:06,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:33:06,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:33:06,101 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:06,182 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2024-11-28 02:33:06,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:33:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-28 02:33:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:06,183 INFO L225 Difference]: With dead ends: 73 [2024-11-28 02:33:06,183 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 02:33:06,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:33:06,185 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:06,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 105 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 02:33:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-28 02:33:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.16) internal successors, (58), 51 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2024-11-28 02:33:06,192 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 23 [2024-11-28 02:33:06,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:06,193 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2024-11-28 02:33:06,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2024-11-28 02:33:06,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 02:33:06,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:06,194 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:06,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:33:06,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 02:33:06,395 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:06,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1989214639, now seen corresponding path program 2 times [2024-11-28 02:33:06,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:06,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460544534] [2024-11-28 02:33:06,396 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:06,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:06,427 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:33:06,427 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:06,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:06,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460544534] [2024-11-28 02:33:06,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460544534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:06,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253483935] [2024-11-28 02:33:06,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:06,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:06,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:06,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:06,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:33:06,926 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:33:06,927 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:06,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:33:06,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:07,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:07,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253483935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:07,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:07,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-28 02:33:07,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584565983] [2024-11-28 02:33:07,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:07,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 02:33:07,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:07,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 02:33:07,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:33:07,655 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:07,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:07,837 INFO L93 Difference]: Finished difference Result 105 states and 124 transitions. [2024-11-28 02:33:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 02:33:07,837 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-28 02:33:07,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:07,838 INFO L225 Difference]: With dead ends: 105 [2024-11-28 02:33:07,839 INFO L226 Difference]: Without dead ends: 84 [2024-11-28 02:33:07,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:33:07,840 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:07,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 121 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:33:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-28 02:33:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-28 02:33:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 1.0975609756097562) internal successors, (90), 83 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2024-11-28 02:33:07,853 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 39 [2024-11-28 02:33:07,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:07,853 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2024-11-28 02:33:07,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2024-11-28 02:33:07,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:33:07,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:07,856 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:07,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:33:08,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:08,061 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:08,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:08,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1730637345, now seen corresponding path program 3 times [2024-11-28 02:33:08,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:08,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216602343] [2024-11-28 02:33:08,062 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:33:08,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:08,185 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-28 02:33:08,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:09,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:09,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216602343] [2024-11-28 02:33:09,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216602343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:09,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994295718] [2024-11-28 02:33:09,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:33:09,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:09,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:09,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:09,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:33:09,991 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-28 02:33:09,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:09,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 02:33:09,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:10,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:11,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994295718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:11,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:11,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2024-11-28 02:33:11,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746897583] [2024-11-28 02:33:11,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:11,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-28 02:33:11,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:11,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-28 02:33:11,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2024-11-28 02:33:11,661 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 66 states, 66 states have (on average 2.090909090909091) internal successors, (138), 66 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:11,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:11,910 INFO L93 Difference]: Finished difference Result 169 states and 196 transitions. [2024-11-28 02:33:11,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 02:33:11,912 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.090909090909091) internal successors, (138), 66 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-28 02:33:11,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:11,914 INFO L225 Difference]: With dead ends: 169 [2024-11-28 02:33:11,915 INFO L226 Difference]: Without dead ends: 148 [2024-11-28 02:33:11,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2024-11-28 02:33:11,921 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:11,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 155 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:33:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-28 02:33:11,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-28 02:33:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.0547945205479452) internal successors, (154), 147 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 154 transitions. [2024-11-28 02:33:11,933 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 154 transitions. Word has length 71 [2024-11-28 02:33:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:11,933 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 154 transitions. [2024-11-28 02:33:11,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.090909090909091) internal successors, (138), 66 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 154 transitions. [2024-11-28 02:33:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:33:11,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:11,936 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:11,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:33:12,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:33:12,140 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:12,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2097057217, now seen corresponding path program 4 times [2024-11-28 02:33:12,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:12,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142629409] [2024-11-28 02:33:12,141 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:33:12,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:12,216 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:33:12,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:15,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:15,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142629409] [2024-11-28 02:33:15,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142629409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:15,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748828068] [2024-11-28 02:33:15,410 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:33:15,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:15,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:15,413 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:15,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:33:15,608 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:33:15,609 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:15,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-28 02:33:15,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:15,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:20,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748828068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:20,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:20,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2024-11-28 02:33:20,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769301758] [2024-11-28 02:33:20,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:20,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-11-28 02:33:20,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:20,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-11-28 02:33:20,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-11-28 02:33:20,843 INFO L87 Difference]: Start difference. First operand 148 states and 154 transitions. Second operand has 130 states, 130 states have (on average 2.046153846153846) internal successors, (266), 130 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:21,462 INFO L93 Difference]: Finished difference Result 297 states and 340 transitions. [2024-11-28 02:33:21,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-11-28 02:33:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.046153846153846) internal successors, (266), 130 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-28 02:33:21,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:21,466 INFO L225 Difference]: With dead ends: 297 [2024-11-28 02:33:21,467 INFO L226 Difference]: Without dead ends: 276 [2024-11-28 02:33:21,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5206 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-11-28 02:33:21,473 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:21,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 121 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:33:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-28 02:33:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-11-28 02:33:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 274 states have (on average 1.0291970802919708) internal successors, (282), 275 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 282 transitions. [2024-11-28 02:33:21,497 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 282 transitions. Word has length 135 [2024-11-28 02:33:21,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:21,498 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 282 transitions. [2024-11-28 02:33:21,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.046153846153846) internal successors, (266), 130 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:21,498 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 282 transitions. [2024-11-28 02:33:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-28 02:33:21,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:21,506 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:21,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:33:21,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:21,710 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:33:21,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1044761857, now seen corresponding path program 5 times [2024-11-28 02:33:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631332697] [2024-11-28 02:33:21,711 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 02:33:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:22,524 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2024-11-28 02:33:22,524 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:33,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:33,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631332697] [2024-11-28 02:33:33,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631332697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:33,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480320536] [2024-11-28 02:33:33,899 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 02:33:33,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:33,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:33,901 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:33,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:40:56,282 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2024-11-28 02:40:56,282 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:40:56,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-28 02:40:56,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:40:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:56,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:10,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480320536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:10,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:10,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 256 [2024-11-28 02:41:10,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889298620] [2024-11-28 02:41:10,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:10,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2024-11-28 02:41:10,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:10,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2024-11-28 02:41:10,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2024-11-28 02:41:10,323 INFO L87 Difference]: Start difference. First operand 276 states and 282 transitions. Second operand has 256 states, 256 states have (on average 2.01953125) internal successors, (517), 256 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:11,802 INFO L93 Difference]: Finished difference Result 553 states and 628 transitions. [2024-11-28 02:41:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2024-11-28 02:41:11,803 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 256 states have (on average 2.01953125) internal successors, (517), 256 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2024-11-28 02:41:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:11,806 INFO L225 Difference]: With dead ends: 553 [2024-11-28 02:41:11,806 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 02:41:11,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19781 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2024-11-28 02:41:11,811 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:11,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 195 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:41:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 02:41:11,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-28 02:41:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 530 states have (on average 1.0150943396226415) internal successors, (538), 531 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 538 transitions. [2024-11-28 02:41:11,840 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 538 transitions. Word has length 263 [2024-11-28 02:41:11,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:11,841 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 538 transitions. [2024-11-28 02:41:11,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 256 states have (on average 2.01953125) internal successors, (517), 256 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:11,842 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 538 transitions. [2024-11-28 02:41:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-28 02:41:11,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:11,850 INFO L218 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:11,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:41:12,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:41:12,051 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 02:41:12,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2000178049, now seen corresponding path program 6 times [2024-11-28 02:41:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:12,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84658163] [2024-11-28 02:41:12,052 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 02:41:12,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:15,565 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 128 check-sat command(s) [2024-11-28 02:41:15,565 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 32131 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:50,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:50,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84658163] [2024-11-28 02:41:50,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84658163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:50,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090311143] [2024-11-28 02:41:50,574 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 02:41:50,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:50,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:50,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:50,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759084a1-65d2-43c4-9089-06eeca79d519/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process