./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_25x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/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_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_25x0-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ec6e434f91e1569e6fad03794f07a751e615694ef413649174052dcc7984987 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:22:51,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:22:51,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:22:51,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:22:51,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:22:51,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:22:51,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:22:51,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:22:51,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:22:51,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:22:51,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:22:51,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:22:51,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:22:51,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:22:51,825 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:22:51,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:22:51,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:22:51,826 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:22:51,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:22:51,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:22:51,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:22:51,828 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:22:51,829 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:51,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:51,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:51,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:22:51,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:22:51,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:22:51,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:22:51,831 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_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ec6e434f91e1569e6fad03794f07a751e615694ef413649174052dcc7984987 [2024-11-28 02:22:52,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:22:52,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:22:52,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:22:52,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:22:52,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:22:52,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/sum_25x0-1.c [2024-11-28 02:22:55,062 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/data/9f894af35/c92e1c1e3be242c1aea7d2cfe044f643/FLAGfefc0ab8a [2024-11-28 02:22:55,355 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:22:55,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/sv-benchmarks/c/recursive-simple/sum_25x0-1.c [2024-11-28 02:22:55,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/data/9f894af35/c92e1c1e3be242c1aea7d2cfe044f643/FLAGfefc0ab8a [2024-11-28 02:22:55,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/data/9f894af35/c92e1c1e3be242c1aea7d2cfe044f643 [2024-11-28 02:22:55,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:22:55,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:22:55,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:55,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:22:55,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:22:55,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367aeb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55, skipping insertion in model container [2024-11-28 02:22:55,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:55,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:55,606 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:22:55,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:55,635 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:22:55,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55 WrapperNode [2024-11-28 02:22:55,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:55,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:55,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:22:55,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:22:55,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,674 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-11-28 02:22:55,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:55,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:22:55,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:22:55,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:22:55,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,701 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:22:55,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,704 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:22:55,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:22:55,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:22:55,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:22:55,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:55,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:55,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:22:55,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:22:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:22:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:22:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:22:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2024-11-28 02:22:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2024-11-28 02:22:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:22:55,854 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:22:55,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:22:56,032 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-28 02:22:56,033 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:22:56,046 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:22:56,046 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:22:56,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:56 BoogieIcfgContainer [2024-11-28 02:22:56,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:22:56,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:22:56,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:22:56,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:22:56,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:22:55" (1/3) ... [2024-11-28 02:22:56,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b451317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:56, skipping insertion in model container [2024-11-28 02:22:56,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55" (2/3) ... [2024-11-28 02:22:56,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b451317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:56, skipping insertion in model container [2024-11-28 02:22:56,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:56" (3/3) ... [2024-11-28 02:22:56,062 INFO L128 eAbstractionObserver]: Analyzing ICFG sum_25x0-1.c [2024-11-28 02:22:56,081 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:22:56,082 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sum_25x0-1.c that has 2 procedures, 32 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-11-28 02:22:56,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:22:56,170 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;@77dcbbf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:22:56,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 02:22:56,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:22:56,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 02:22:56,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:56,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:22:56,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:56,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:56,189 INFO L85 PathProgramCache]: Analyzing trace with hash 890593104, now seen corresponding path program 1 times [2024-11-28 02:22:56,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:56,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777559476] [2024-11-28 02:22:56,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:56,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:56,421 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 02:22:56,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:56,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777559476] [2024-11-28 02:22:56,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777559476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:56,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:56,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:22:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094551035] [2024-11-28 02:22:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:56,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:56,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:56,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:56,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:56,455 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:56,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:56,626 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2024-11-28 02:22:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:56,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 02:22:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:56,635 INFO L225 Difference]: With dead ends: 62 [2024-11-28 02:22:56,635 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 02:22:56,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:22:56,645 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:56,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 73 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 02:22:56,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2024-11-28 02:22:56,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:22:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-11-28 02:22:56,691 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 6 [2024-11-28 02:22:56,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:56,692 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-11-28 02:22:56,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-11-28 02:22:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 02:22:56,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:56,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:56,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:22:56,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:56,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:56,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1838587471, now seen corresponding path program 1 times [2024-11-28 02:22:56,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688717182] [2024-11-28 02:22:56,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:56,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:56,796 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 02:22:56,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:56,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688717182] [2024-11-28 02:22:56,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688717182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:56,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:56,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:56,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419294765] [2024-11-28 02:22:56,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:56,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:56,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:56,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:56,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:56,799 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:56,896 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-28 02:22:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:56,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 02:22:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:56,899 INFO L225 Difference]: With dead ends: 38 [2024-11-28 02:22:56,899 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 02:22:56,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:22:56,900 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:56,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 29 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:56,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 02:22:56,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-11-28 02:22:56,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:22:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-28 02:22:56,912 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 7 [2024-11-28 02:22:56,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:56,912 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-28 02:22:56,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:56,913 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-28 02:22:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:22:56,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:56,915 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:56,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:22:56,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:56,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:56,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1161636818, now seen corresponding path program 1 times [2024-11-28 02:22:56,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:56,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818619958] [2024-11-28 02:22:56,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:57,049 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 02:22:57,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818619958] [2024-11-28 02:22:57,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818619958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:57,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:57,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:57,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392904838] [2024-11-28 02:22:57,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:57,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:57,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:57,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:57,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:57,051 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:57,124 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2024-11-28 02:22:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:57,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 02:22:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:57,125 INFO L225 Difference]: With dead ends: 37 [2024-11-28 02:22:57,125 INFO L226 Difference]: Without dead ends: 35 [2024-11-28 02:22:57,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:22:57,126 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:57,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 68 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-28 02:22:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-28 02:22:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:22:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-11-28 02:22:57,144 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 8 [2024-11-28 02:22:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:57,144 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-11-28 02:22:57,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:57,144 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-11-28 02:22:57,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 02:22:57,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:57,145 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:57,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:22:57,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:57,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:57,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1131512701, now seen corresponding path program 1 times [2024-11-28 02:22:57,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:57,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452739071] [2024-11-28 02:22:57,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:57,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:57,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:57,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452739071] [2024-11-28 02:22:57,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452739071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:22:57,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076507010] [2024-11-28 02:22:57,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:57,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:57,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:57,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:57,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:22:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:57,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:22:57,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:57,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:22:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:57,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076507010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:22:57,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:22:57,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-28 02:22:57,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951978533] [2024-11-28 02:22:57,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:22:57,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:22:57,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:57,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:22:57,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:22:57,544 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:57,795 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2024-11-28 02:22:57,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:22:57,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 02:22:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:57,798 INFO L225 Difference]: With dead ends: 88 [2024-11-28 02:22:57,801 INFO L226 Difference]: Without dead ends: 72 [2024-11-28 02:22:57,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:22:57,802 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 88 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:57,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 152 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:22:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-28 02:22:57,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2024-11-28 02:22:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 52 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:22:57,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-11-28 02:22:57,813 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 13 [2024-11-28 02:22:57,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:57,814 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-11-28 02:22:57,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:57,814 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-11-28 02:22:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 02:22:57,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:57,815 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:57,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:22:58,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:58,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:58,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,020 INFO L85 PathProgramCache]: Analyzing trace with hash 757135551, now seen corresponding path program 1 times [2024-11-28 02:22:58,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:58,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443747410] [2024-11-28 02:22:58,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:58,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:58,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443747410] [2024-11-28 02:22:58,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443747410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:22:58,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477237896] [2024-11-28 02:22:58,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:58,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:58,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:58,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:22:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:22:58,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:58,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:22:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477237896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:58,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:22:58,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 02:22:58,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214553316] [2024-11-28 02:22:58,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:58,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:58,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:58,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:58,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:22:58,290 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:58,369 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2024-11-28 02:22:58,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:58,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 02:22:58,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:58,374 INFO L225 Difference]: With dead ends: 66 [2024-11-28 02:22:58,374 INFO L226 Difference]: Without dead ends: 65 [2024-11-28 02:22:58,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:22:58,375 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:58,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 63 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-28 02:22:58,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2024-11-28 02:22:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:22:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-11-28 02:22:58,400 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 15 [2024-11-28 02:22:58,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:58,401 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-11-28 02:22:58,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-11-28 02:22:58,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 02:22:58,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:58,401 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:58,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:22:58,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:58,602 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:58,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1996365668, now seen corresponding path program 1 times [2024-11-28 02:22:58,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:58,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397985105] [2024-11-28 02:22:58,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:58,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397985105] [2024-11-28 02:22:58,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397985105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:22:58,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717996480] [2024-11-28 02:22:58,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:58,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:58,706 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:58,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:22:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:22:58,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:58,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:22:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:58,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717996480] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:22:58,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:22:58,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-28 02:22:58,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382279738] [2024-11-28 02:22:58,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:22:58,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:22:58,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:58,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:22:58,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:22:58,961 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:59,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:59,156 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2024-11-28 02:22:59,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:22:59,161 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 02:22:59,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:59,162 INFO L225 Difference]: With dead ends: 66 [2024-11-28 02:22:59,162 INFO L226 Difference]: Without dead ends: 65 [2024-11-28 02:22:59,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:22:59,163 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:59,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 155 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-28 02:22:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2024-11-28 02:22:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 51 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:22:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2024-11-28 02:22:59,185 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 16 [2024-11-28 02:22:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:59,185 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2024-11-28 02:22:59,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2024-11-28 02:22:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 02:22:59,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:59,186 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-28 02:22:59,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:22:59,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:59,387 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:22:59,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:59,387 INFO L85 PathProgramCache]: Analyzing trace with hash 490520080, now seen corresponding path program 2 times [2024-11-28 02:22:59,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:59,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932335258] [2024-11-28 02:22:59,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:22:59,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:59,417 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:22:59,418 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:22:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:59,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:59,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932335258] [2024-11-28 02:22:59,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932335258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:22:59,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677185902] [2024-11-28 02:22:59,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:22:59,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:59,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:59,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:59,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:22:59,741 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:22:59,741 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:22:59,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:22:59,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:00,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:00,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677185902] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:00,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:00,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 35 [2024-11-28 02:23:00,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023832070] [2024-11-28 02:23:00,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:00,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 02:23:00,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:00,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 02:23:00,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 02:23:00,390 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand has 35 states, 32 states have (on average 2.625) internal successors, (84), 20 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:01,706 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2024-11-28 02:23:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 02:23:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 2.625) internal successors, (84), 20 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-28 02:23:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:01,708 INFO L225 Difference]: With dead ends: 153 [2024-11-28 02:23:01,708 INFO L226 Difference]: Without dead ends: 129 [2024-11-28 02:23:01,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=779, Invalid=3511, Unknown=0, NotChecked=0, Total=4290 [2024-11-28 02:23:01,712 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 471 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:01,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 294 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:23:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-28 02:23:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 121. [2024-11-28 02:23:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 95 states have (on average 1.0947368421052632) internal successors, (104), 97 states have internal predecessors, (104), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:23:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 128 transitions. [2024-11-28 02:23:01,743 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 128 transitions. Word has length 34 [2024-11-28 02:23:01,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:01,743 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 128 transitions. [2024-11-28 02:23:01,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 2.625) internal successors, (84), 20 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 128 transitions. [2024-11-28 02:23:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 02:23:01,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:01,746 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-11-28 02:23:01,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:01,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:01,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:01,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:01,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1609791473, now seen corresponding path program 2 times [2024-11-28 02:23:01,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:01,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111630820] [2024-11-28 02:23:01,948 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:23:01,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:01,975 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:23:01,975 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111630820] [2024-11-28 02:23:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111630820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806276107] [2024-11-28 02:23:02,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:23:02,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:02,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:02,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:02,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:23:02,261 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:23:02,261 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:02,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:23:02,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:02,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:02,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806276107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:02,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:02,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-28 02:23:02,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705210010] [2024-11-28 02:23:02,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:02,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 02:23:02,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:02,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 02:23:02,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:23:02,613 INFO L87 Difference]: Start difference. First operand 121 states and 128 transitions. Second operand has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:02,950 INFO L93 Difference]: Finished difference Result 124 states and 131 transitions. [2024-11-28 02:23:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 02:23:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-28 02:23:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:02,953 INFO L225 Difference]: With dead ends: 124 [2024-11-28 02:23:02,953 INFO L226 Difference]: Without dead ends: 123 [2024-11-28 02:23:02,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 02:23:02,954 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 158 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:02,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 302 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:23:02,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-28 02:23:02,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2024-11-28 02:23:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 95 states have (on average 1.0315789473684212) internal successors, (98), 97 states have internal predecessors, (98), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:23:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2024-11-28 02:23:02,984 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 37 [2024-11-28 02:23:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:02,986 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2024-11-28 02:23:02,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2024-11-28 02:23:02,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:23:02,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:02,988 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:02,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:03,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:03,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:03,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:03,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1810971126, now seen corresponding path program 1 times [2024-11-28 02:23:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:03,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572267522] [2024-11-28 02:23:03,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:03,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:03,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:03,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572267522] [2024-11-28 02:23:03,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572267522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:03,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854982099] [2024-11-28 02:23:03,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:03,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:03,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:03,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:03,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:23:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:03,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 02:23:03,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:04,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:05,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854982099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:05,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:05,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 72 [2024-11-28 02:23:05,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147502993] [2024-11-28 02:23:05,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:05,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-28 02:23:05,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:05,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-28 02:23:05,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=714, Invalid=4398, Unknown=0, NotChecked=0, Total=5112 [2024-11-28 02:23:05,710 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 39 states have internal predecessors, (194), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:07,432 INFO L93 Difference]: Finished difference Result 295 states and 319 transitions. [2024-11-28 02:23:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-28 02:23:07,433 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 39 states have internal predecessors, (194), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-28 02:23:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:07,435 INFO L225 Difference]: With dead ends: 295 [2024-11-28 02:23:07,435 INFO L226 Difference]: Without dead ends: 254 [2024-11-28 02:23:07,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2468 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2028, Invalid=9102, Unknown=0, NotChecked=0, Total=11130 [2024-11-28 02:23:07,443 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 891 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:07,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 794 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:23:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-28 02:23:07,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 241. [2024-11-28 02:23:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 191 states have (on average 1.0732984293193717) internal successors, (205), 193 states have internal predecessors, (205), 24 states have call successors, (24), 23 states have call predecessors, (24), 23 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 02:23:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 253 transitions. [2024-11-28 02:23:07,484 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 253 transitions. Word has length 77 [2024-11-28 02:23:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:07,485 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 253 transitions. [2024-11-28 02:23:07,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 39 states have internal predecessors, (194), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 253 transitions. [2024-11-28 02:23:07,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:23:07,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:07,488 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1] [2024-11-28 02:23:07,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:23:07,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 02:23:07,693 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:07,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1916377020, now seen corresponding path program 3 times [2024-11-28 02:23:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:07,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957838353] [2024-11-28 02:23:07,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:23:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:07,739 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 02:23:07,740 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:08,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:08,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957838353] [2024-11-28 02:23:08,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957838353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:08,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634939313] [2024-11-28 02:23:08,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:23:08,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:08,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:08,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:08,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:23:08,536 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 02:23:08,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:08,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 02:23:08,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:08,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:09,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634939313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:09,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:09,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 54 [2024-11-28 02:23:09,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248573983] [2024-11-28 02:23:09,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:09,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-28 02:23:09,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:09,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-28 02:23:09,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=2260, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 02:23:09,571 INFO L87 Difference]: Start difference. First operand 241 states and 253 transitions. Second operand has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:10,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:10,550 INFO L93 Difference]: Finished difference Result 274 states and 290 transitions. [2024-11-28 02:23:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 02:23:10,550 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-28 02:23:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:10,552 INFO L225 Difference]: With dead ends: 274 [2024-11-28 02:23:10,552 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 02:23:10,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1636, Invalid=4526, Unknown=0, NotChecked=0, Total=6162 [2024-11-28 02:23:10,557 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 456 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:10,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 661 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:23:10,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 02:23:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-11-28 02:23:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 211 states have (on average 1.033175355450237) internal successors, (218), 213 states have internal predecessors, (218), 26 states have call successors, (26), 25 states have call predecessors, (26), 25 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:23:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 270 transitions. [2024-11-28 02:23:10,607 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 270 transitions. Word has length 86 [2024-11-28 02:23:10,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:10,607 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 270 transitions. [2024-11-28 02:23:10,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 270 transitions. [2024-11-28 02:23:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 02:23:10,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:10,610 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:10,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:10,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:23:10,813 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:10,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:10,814 INFO L85 PathProgramCache]: Analyzing trace with hash 56836554, now seen corresponding path program 2 times [2024-11-28 02:23:10,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:10,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500254155] [2024-11-28 02:23:10,814 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:23:10,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:10,836 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:23:10,836 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2024-11-28 02:23:10,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:10,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500254155] [2024-11-28 02:23:10,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500254155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:10,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:10,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:10,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667190506] [2024-11-28 02:23:10,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:10,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:10,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:10,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:10,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:10,970 INFO L87 Difference]: Start difference. First operand 265 states and 270 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:11,045 INFO L93 Difference]: Finished difference Result 271 states and 277 transitions. [2024-11-28 02:23:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:23:11,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-28 02:23:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:11,047 INFO L225 Difference]: With dead ends: 271 [2024-11-28 02:23:11,047 INFO L226 Difference]: Without dead ends: 270 [2024-11-28 02:23:11,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:11,048 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:11,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 62 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:23:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-28 02:23:11,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2024-11-28 02:23:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 211 states have (on average 1.018957345971564) internal successors, (215), 212 states have internal predecessors, (215), 26 states have call successors, (26), 25 states have call predecessors, (26), 25 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:23:11,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 267 transitions. [2024-11-28 02:23:11,081 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 267 transitions. Word has length 161 [2024-11-28 02:23:11,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:11,082 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 267 transitions. [2024-11-28 02:23:11,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 267 transitions. [2024-11-28 02:23:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:23:11,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:11,086 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 1, 1, 1, 1] [2024-11-28 02:23:11,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:23:11,087 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:11,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:11,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1844684337, now seen corresponding path program 4 times [2024-11-28 02:23:11,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:11,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697872527] [2024-11-28 02:23:11,092 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:23:11,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:11,167 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:23:11,167 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2076 backedges. 0 proven. 2076 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:13,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:13,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697872527] [2024-11-28 02:23:13,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697872527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:13,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062241138] [2024-11-28 02:23:13,204 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:23:13,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:13,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:13,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:23:13,299 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:23:13,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:13,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 02:23:13,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2076 backedges. 0 proven. 2076 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:13,666 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:16,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2076 backedges. 0 proven. 2076 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062241138] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:16,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:16,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 106 [2024-11-28 02:23:16,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49542630] [2024-11-28 02:23:16,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:16,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-11-28 02:23:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:16,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-11-28 02:23:16,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2764, Invalid=8578, Unknown=0, NotChecked=0, Total=11342 [2024-11-28 02:23:16,213 INFO L87 Difference]: Start difference. First operand 264 states and 267 transitions. Second operand has 107 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 56 states have internal predecessors, (310), 52 states have call successors, (52), 51 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:19,738 INFO L93 Difference]: Finished difference Result 635 states and 690 transitions. [2024-11-28 02:23:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-28 02:23:19,739 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 56 states have internal predecessors, (310), 52 states have call successors, (52), 51 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2024-11-28 02:23:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:19,743 INFO L225 Difference]: With dead ends: 635 [2024-11-28 02:23:19,743 INFO L226 Difference]: Without dead ends: 634 [2024-11-28 02:23:19,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5442 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=6641, Invalid=17851, Unknown=0, NotChecked=0, Total=24492 [2024-11-28 02:23:19,748 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 1673 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:19,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 931 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-28 02:23:19,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 576. [2024-11-28 02:23:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 471 states have (on average 1.0636942675159236) internal successors, (501), 472 states have internal predecessors, (501), 52 states have call successors, (52), 51 states have call predecessors, (52), 51 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 02:23:19,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 605 transitions. [2024-11-28 02:23:19,818 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 605 transitions. Word has length 177 [2024-11-28 02:23:19,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:19,818 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 605 transitions. [2024-11-28 02:23:19,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 56 states have internal predecessors, (310), 52 states have call successors, (52), 51 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 605 transitions. [2024-11-28 02:23:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-28 02:23:19,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:19,822 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:19,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:20,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:23:20,023 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:20,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:20,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1419644664, now seen corresponding path program 1 times [2024-11-28 02:23:20,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970327628] [2024-11-28 02:23:20,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:20,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2398 trivial. 0 not checked. [2024-11-28 02:23:20,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:20,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970327628] [2024-11-28 02:23:20,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970327628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:20,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:20,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:23:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041899996] [2024-11-28 02:23:20,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:20,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:23:20,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:20,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:23:20,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:23:20,176 INFO L87 Difference]: Start difference. First operand 576 states and 605 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:23:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:20,214 INFO L93 Difference]: Finished difference Result 576 states and 605 transitions. [2024-11-28 02:23:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:23:20,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 232 [2024-11-28 02:23:20,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:20,217 INFO L225 Difference]: With dead ends: 576 [2024-11-28 02:23:20,217 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 02:23:20,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:23:20,222 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:20,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:23:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 02:23:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 360. [2024-11-28 02:23:20,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 308 states have (on average 1.0032467532467533) internal successors, (309), 308 states have internal predecessors, (309), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 360 transitions. [2024-11-28 02:23:20,284 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 360 transitions. Word has length 232 [2024-11-28 02:23:20,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:20,285 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 360 transitions. [2024-11-28 02:23:20,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:23:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 360 transitions. [2024-11-28 02:23:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-28 02:23:20,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:20,291 INFO L218 NwaCegarLoop]: trace histogram [51, 51, 51, 51, 51, 50, 50, 1, 1, 1, 1] [2024-11-28 02:23:20,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:23:20,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 02:23:20,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:20,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2017697361, now seen corresponding path program 5 times [2024-11-28 02:23:20,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:20,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2425386] [2024-11-28 02:23:20,292 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 02:23:20,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:20,516 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 51 check-sat command(s) [2024-11-28 02:23:20,517 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:23:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8875 backedges. 8871 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:23:27,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:27,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2425386] [2024-11-28 02:23:27,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2425386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:27,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:27,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2024-11-28 02:23:27,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543772779] [2024-11-28 02:23:27,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:27,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-11-28 02:23:27,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:27,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-11-28 02:23:27,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2653, Invalid=7853, Unknown=0, NotChecked=0, Total=10506 [2024-11-28 02:23:27,463 INFO L87 Difference]: Start difference. First operand 360 states and 360 transitions. Second operand has 103 states, 102 states have (on average 2.9901960784313726) internal successors, (305), 53 states have internal predecessors, (305), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:28,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:28,521 INFO L93 Difference]: Finished difference Result 360 states and 360 transitions. [2024-11-28 02:23:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-28 02:23:28,523 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 102 states have (on average 2.9901960784313726) internal successors, (305), 53 states have internal predecessors, (305), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2024-11-28 02:23:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:28,524 INFO L225 Difference]: With dead ends: 360 [2024-11-28 02:23:28,524 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:23:28,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4247 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3732, Invalid=12780, Unknown=0, NotChecked=0, Total=16512 [2024-11-28 02:23:28,527 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:28,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 630 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:23:28,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:23:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:23:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:23:28,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 359 [2024-11-28 02:23:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:28,528 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:23:28,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 102 states have (on average 2.9901960784313726) internal successors, (305), 53 states have internal predecessors, (305), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:23:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:23:28,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:23:28,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-28 02:23:28,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-28 02:23:28,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-28 02:23:28,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-28 02:23:28,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-28 02:23:28,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-28 02:23:28,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-28 02:23:28,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-28 02:23:28,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:23:28,536 INFO L422 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:23:28,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:23:38,400 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:23:38,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:23:38 BoogieIcfgContainer [2024-11-28 02:23:38,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:23:38,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:23:38,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:23:38,407 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:23:38,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:56" (3/4) ... [2024-11-28 02:23:38,410 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:23:38,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2024-11-28 02:23:38,418 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 02:23:38,418 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:23:38,418 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:23:38,418 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:23:38,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:23:38,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:23:38,490 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:23:38,490 INFO L158 Benchmark]: Toolchain (without parser) took 43080.37ms. Allocated memory was 117.4MB in the beginning and 788.5MB in the end (delta: 671.1MB). Free memory was 93.3MB in the beginning and 407.4MB in the end (delta: -314.1MB). Peak memory consumption was 352.2MB. Max. memory is 16.1GB. [2024-11-28 02:23:38,491 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:23:38,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.83ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 82.7MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:23:38,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.80ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:23:38,491 INFO L158 Benchmark]: Boogie Preprocessor took 39.51ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:23:38,492 INFO L158 Benchmark]: RCFGBuilder took 332.30ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.9MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:23:38,493 INFO L158 Benchmark]: TraceAbstraction took 42354.20ms. Allocated memory was 117.4MB in the beginning and 788.5MB in the end (delta: 671.1MB). Free memory was 70.3MB in the beginning and 411.5MB in the end (delta: -341.1MB). Peak memory consumption was 448.2MB. Max. memory is 16.1GB. [2024-11-28 02:23:38,493 INFO L158 Benchmark]: Witness Printer took 83.07ms. Allocated memory is still 788.5MB. Free memory was 411.5MB in the beginning and 407.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:23:38,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.83ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 82.7MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.80ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.51ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.30ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.9MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 42354.20ms. Allocated memory was 117.4MB in the beginning and 788.5MB in the end (delta: 671.1MB). Free memory was 70.3MB in the beginning and 411.5MB in the end (delta: -341.1MB). Peak memory consumption was 448.2MB. Max. memory is 16.1GB. * Witness Printer took 83.07ms. Allocated memory is still 788.5MB. Free memory was 411.5MB in the beginning and 407.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 32.4s, OverallIterations: 14, TraceHistogramMax: 51, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4076 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4060 mSDsluCounter, 4249 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3777 mSDsCounter, 447 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4665 IncrementalHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 447 mSolverCounterUnsat, 472 mSDtfsCounter, 4665 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1342 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 622 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14761 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=576occurred in iteration=12, InterpolantAutomatonStates: 370, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 113 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 1683 NumberOfCodeBlocks, 1683 NumberOfCodeBlocksAsserted, 101 NumberOfCheckSat, 2094 ConstructedInterpolants, 0 QuantifiedInterpolants, 5790 SizeOfPredicates, 63 NumberOfNonLiveVariables, 1151 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 29 InterpolantComputations, 7 PerfectInterpolantSequences, 12950/21902 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:23:38,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbd9ddd-1933-421d-b151-7cced832c7e3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE